102021211220200 has 48 divisors (see below), whose sum is σ = 237262285536480. Its totient is φ = 40797651034560.

The previous prime is 102021211220153. The next prime is 102021211220321. The reversal of 102021211220200 is 2022112120201.

It is a happy number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 66953802 + ... + 68460601.

It is an arithmetic number, because the mean of its divisors is an integer number (4942964282010).

Almost surely, 2^{102021211220200} is an apocalyptic number.

102021211220200 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

102021211220200 is an abundant number, since it is smaller than the sum of its proper divisors (135241074316280).

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

102021211220200 is a wasteful number, since it uses less digits than its factorization.

102021211220200 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 135418186 (or 135418177 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 16.

Adding to 102021211220200 its reverse (2022112120201), we get a palindrome (104043323340401).

Subtracting from 102021211220200 its reverse (2022112120201), we obtain a palindrome (99999099099999).

The spelling of 102021211220200 in words is "one hundred two trillion, twenty-one billion, two hundred eleven million, two hundred twenty thousand, two hundred".