102121101202020 has 96 divisors (see below), whose sum is σ = 286227883267200. Its totient is φ = 27204796462080.

The previous prime is 102121101201949. The next prime is 102121101202037. The reversal of 102121101202020 is 20202101121201.

102121101202020 is digitally balanced in base 4, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (15).

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 446232744 + ... + 446461536.

It is an arithmetic number, because the mean of its divisors is an integer number (2981540450700).

Almost surely, 2^{102121101202020} is an apocalyptic number.

102121101202020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

102121101202020 is an abundant number, since it is smaller than the sum of its proper divisors (184106782065180).

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

102121101202020 is a wasteful number, since it uses less digits than its factorization.

102121101202020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 236285 (or 236283 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 15.

Adding to 102121101202020 its reverse (20202101121201), we get a palindrome (122323202323221).

The spelling of 102121101202020 in words is "one hundred two trillion, one hundred twenty-one billion, one hundred one million, two hundred two thousand, twenty".