102021111012100 has 36 divisors (see below), whose sum is σ = 253012355311744. Its totient is φ = 34978666632480.

The previous prime is 102021111012077. The next prime is 102021111012143. The reversal of 102021111012100 is 1210111120201.

It is a happy number.

102021111012100 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 72872221452 + ... + 72872222851.

Almost surely, 2^{102021111012100} is an apocalyptic number.

102021111012100 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

102021111012100 is an abundant number, since it is smaller than the sum of its proper divisors (150991244299644).

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

102021111012100 is a wasteful number, since it uses less digits than its factorization.

102021111012100 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 145744444324 (or 145744444317 counting only the distinct ones).

The product of its (nonzero) digits is 8, while the sum is 13.

Adding to 102021111012100 its reverse (1210111120201), we get a palindrome (103231222132301).

The spelling of 102021111012100 in words is "one hundred two trillion, twenty-one billion, one hundred eleven million, twelve thousand, one hundred".