102203021012121 has 32 divisors (see below), whose sum is σ = 159956312092800. Its totient is φ = 64316246460480.

The previous prime is 102203021012093. The next prime is 102203021012179. The reversal of 102203021012121 is 121210120302201.

102203021012121 is a `hidden beast` number, since 1 + 0 + 220 + 302 + 1 + 0 + 121 + 21 = 666.

It is not a de Polignac number, because 102203021012121 - 2²² = 102203016817817 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 102203021012094 and 102203021012103.

It is not an unprimeable number, because it can be changed into a prime (102203021012821) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 359471910 + ... + 359756111.

It is an arithmetic number, because the mean of its divisors is an integer number (4998634752900).

Almost surely, 2^{102203021012121} is an apocalyptic number.

It is an amenable number.

102203021012121 is a deficient number, since it is larger than the sum of its proper divisors (57753291080679).

102203021012121 is a wasteful number, since it uses less digits than its factorization.

102203021012121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 719228326 (or 719228320 counting only the distinct ones).

The product of its (nonzero) digits is 96, while the sum is 18.

Adding to 102203021012121 its reverse (121210120302201), we get a palindrome (223413141314322).

The spelling of 102203021012121 in words is "one hundred two trillion, two hundred three billion, twenty-one million, twelve thousand, one hundred twenty-one".