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122210112012 = 22322034622867
BaseRepresentation
bin111000111010001001…
…0100101001000001100
3102200110000212221012220
41301310102211020030
54000241242041022
6132050442455340
711554323545442
oct1616422451014
9380400787186
10122210112012
1147913470a7a
121b827b04550
13b6a8049561
145cb4a96b92
1532a401d85c
hex1c744a520c

122210112012 has 24 divisors (see below), whose sum is σ = 285286430016. Its totient is φ = 40718203728.

The previous prime is 122210112001. The next prime is 122210112019. The reversal of 122210112012 is 210211012221.

It is a super-2 number, since 2×1222101120122 (a number of 23 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 122210111982 and 122210112000.

It is not an unprimeable number, because it can be changed into a prime (122210112019) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2284998 + ... + 2337869.

It is an arithmetic number, because the mean of its divisors is an integer number (11886934584).

Almost surely, 2122210112012 is an apocalyptic number.

122210112012 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

122210112012 is an abundant number, since it is smaller than the sum of its proper divisors (163076318004).

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

122210112012 is a wasteful number, since it uses less digits than its factorization.

122210112012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4625077 (or 4625075 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 15.

Adding to 122210112012 its reverse (210211012221), we get a palindrome (332421124233).

The spelling of 122210112012 in words is "one hundred twenty-two billion, two hundred ten million, one hundred twelve thousand, twelve".

Divisors: 1 2 3 4 6 12 2203 4406 6609 8812 13218 26436 4622867 9245734 13868601 18491468 27737202 55474404 10184176001 20368352002 30552528003 40736704004 61105056006 122210112012