102121100200220 has 48 divisors (see below), whose sum is σ = 225742253335200. Its totient is φ = 38698372362240.

The previous prime is 102121100200157. The next prime is 102121100200307. The reversal of 102121100200220 is 22002001121201.

It is a super-2 number, since 2×102121100200220² (a number of 29 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 102121100200195 and 102121100200204.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 180948236 + ... + 181511724.

It is an arithmetic number, because the mean of its divisors is an integer number (4702963611150).

Almost surely, 2^{102121100200220} is an apocalyptic number.

102121100200220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

102121100200220 is an abundant number, since it is smaller than the sum of its proper divisors (123621153134980).

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

102121100200220 is a wasteful number, since it uses less digits than its factorization.

102121100200220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1040438 (or 1040436 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 14.

Adding to 102121100200220 its reverse (22002001121201), we get a palindrome (124123101321421).

The spelling of 102121100200220 in words is "one hundred two trillion, one hundred twenty-one billion, one hundred million, two hundred thousand, two hundred twenty".