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101201220012 = 22323366671087
BaseRepresentation
bin101111001000000010…
…0000001000110101100
3100200012212221122022210
41132100010001012230
53124230003020022
6114254033210420
710211601114444
oct1362004010654
9320185848283
10101201220012
1139a124a5512
1217744100a10
13970a640309
144c807cb124
152974916a0c
hex17901011ac

101201220012 has 24 divisors (see below), whose sum is σ = 246402971136. Its totient is φ = 32267055568.

The previous prime is 101201220011. The next prime is 101201220017. The reversal of 101201220012 is 210022102101.

It is a Harshad number since it is a multiple of its sum of digits (12).

It is a self number, because there is not a number n which added to its sum of digits gives 101201220012.

It is not an unprimeable number, because it can be changed into a prime (101201220011) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 183335268 + ... + 183335819.

It is an arithmetic number, because the mean of its divisors is an integer number (10266790464).

Almost surely, 2101201220012 is an apocalyptic number.

101201220012 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

101201220012 is an abundant number, since it is smaller than the sum of its proper divisors (145201751124).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

101201220012 is a wasteful number, since it uses less digits than its factorization.

101201220012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 366671117 (or 366671115 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 12.

Adding to 101201220012 its reverse (210022102101), we get a palindrome (311223322113).

The spelling of 101201220012 in words is "one hundred one billion, two hundred one million, two hundred twenty thousand, twelve".

Divisors: 1 2 3 4 6 12 23 46 69 92 138 276 366671087 733342174 1100013261 1466684348 2200026522 4400053044 8433435001 16866870002 25300305003 33733740004 50600610006 101201220012