102121233100 has 18 divisors (see below), whose sum is σ = 221603076044. Its totient is φ = 40848493200.

The previous prime is 102121233089. The next prime is 102121233101. The reversal of 102121233100 is 1332121201.

It is a super-2 number, since 2×102121233100² (a number of 23 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (102121233101) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 510606066 + ... + 510606265.

Almost surely, 2^102121233100 is an apocalyptic number.

102121233100 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

102121233100 is an abundant number, since it is smaller than the sum of its proper divisors (119481842944).

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

102121233100 is a wasteful number, since it uses less digits than its factorization.

102121233100 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1021212345 (or 1021212338 counting only the distinct ones).

The product of its (nonzero) digits is 72, while the sum is 16.

Adding to 102121233100 its reverse (1332121201), we get a palindrome (103453354301).

The spelling of 102121233100 in words is "one hundred two billion, one hundred twenty-one million, two hundred thirty-three thousand, one hundred".