102021211211120 has 40 divisors (see below), whose sum is σ = 237202317819600. Its totient is φ = 40807968053760.

The previous prime is 102021211211119. The next prime is 102021211211123. The reversal of 102021211211120 is 21112112120201.

It is a tau number, because it is divible by the number of its divisors (40).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (102021211211123) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1676645 + ... + 14382404.

It is an arithmetic number, because the mean of its divisors is an integer number (5930057945490).

Almost surely, 2^{102021211211120} is an apocalyptic number.

102021211211120 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

102021211211120 is an abundant number, since it is smaller than the sum of its proper divisors (135181106608480).

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

102021211211120 is a wasteful number, since it uses less digits than its factorization.

102021211211120 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16138473 (or 16138467 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 17.

Adding to 102021211211120 its reverse (21112112120201), we get a palindrome (123133323331321).

The spelling of 102021211211120 in words is "one hundred two trillion, twenty-one billion, two hundred eleven million, two hundred eleven thousand, one hundred twenty".