102200121010 has 32 divisors (see below), whose sum is σ = 201848960880. Its totient is φ = 37023437568.

The previous prime is 102200120989. The next prime is 102200121013. The reversal of 102200121010 is 10121002201.

It can be written as a sum of positive squares in 8 ways, for example, as 72318504241 + 29881616769 = 268921^2 + 172863^2 .

It is a Harshad number since it is a multiple of its sum of digits (10).

It is not an unprimeable number, because it can be changed into a prime (102200121013) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 7409665 + ... + 7423444.

Almost surely, 2^102200121010 is an apocalyptic number.

102200121010 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

102200121010 is a deficient number, since it is larger than the sum of its proper divisors (99648839870).

102200121010 is a wasteful number, since it uses less digits than its factorization.

102200121010 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14833182.

The product of its (nonzero) digits is 8, while the sum is 10.

Adding to 102200121010 its reverse (10121002201), we get a palindrome (112321123211).

The spelling of 102200121010 in words is "one hundred two billion, two hundred million, one hundred twenty-one thousand, ten".