102021111021200 has 60 divisors (see below), whose sum is σ = 280120821983040. Its totient is φ = 34978666634880.

The previous prime is 102021111021197. The next prime is 102021111021239. The reversal of 102021111021200 is 2120111120201.

It is a super-2 number, since 2×102021111021200² (a number of 29 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (14).

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, 18218052740 + ... + 18218058339.

It is an arithmetic number, because the mean of its divisors is an integer number (4668680366384).

Almost surely, 2^{102021111021200} is an apocalyptic number.

102021111021200 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

102021111021200 is an abundant number, since it is smaller than the sum of its proper divisors (178099710961840).

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

102021111021200 is a wasteful number, since it uses less digits than its factorization.

102021111021200 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 36436111104 (or 36436111093 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 14.

Adding to 102021111021200 its reverse (2120111120201), we get a palindrome (104141222141401).

Subtracting from 102021111021200 its reverse (2120111120201), we obtain a palindrome (99900999900999).

The spelling of 102021111021200 in words is "one hundred two trillion, twenty-one billion, one hundred eleven million, twenty-one thousand, two hundred".