121032002100 has 72 divisors (see below), whose sum is σ = 350251888000. Its totient is φ = 32269121280.

The previous prime is 121032002083. The next prime is 121032002101. The reversal of 121032002100 is 1200230121.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (121032002101) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1687776 + ... + 1758024.

Almost surely, 2^121032002100 is an apocalyptic number.

121032002100 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

121032002100 is an abundant number, since it is smaller than the sum of its proper divisors (229219885900).

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

121032002100 is a wasteful number, since it uses less digits than its factorization.

121032002100 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 76009 (or 76002 counting only the distinct ones).

The product of its (nonzero) digits is 24, while the sum is 12.

Adding to 121032002100 its reverse (1200230121), we get a palindrome (122232232221).

The spelling of 121032002100 in words is "one hundred twenty-one billion, thirty-two million, two thousand, one hundred".