102121010222121 has 24 divisors (see below), whose sum is σ = 164842783691040. Its totient is φ = 60381972043200.

The previous prime is 102121010222111. The next prime is 102121010222159. The reversal of 102121010222121 is 121222010121201.

102121010222121 is a `hidden beast` number, since 10 + 212 + 101 + 0 + 222 + 121 = 666.

It is not a de Polignac number, because 102121010222121 - 2⁶ = 102121010222057 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 102121010222094 and 102121010222103.

It is not an unprimeable number, because it can be changed into a prime (102121010222111) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 12579573451 + ... + 12579581568.

It is an arithmetic number, because the mean of its divisors is an integer number (6868449320460).

Almost surely, 2^{102121010222121} is an apocalyptic number.

102121010222121 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

102121010222121 is a deficient number, since it is larger than the sum of its proper divisors (62721773468919).

102121010222121 is a wasteful number, since it uses less digits than its factorization.

102121010222121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25159155077 (or 25159155074 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 18.

Adding to 102121010222121 its reverse (121222010121201), we get a palindrome (223343020343322).

The spelling of 102121010222121 in words is "one hundred two trillion, one hundred twenty-one billion, ten million, two hundred twenty-two thousand, one hundred twenty-one".