202201102112121 has 72 divisors (see below), whose sum is σ = 361175540544000. Its totient is φ = 108378465652800.

The previous prime is 202201102112063. The next prime is 202201102112147. The reversal of 202201102112121 is 121211201102202.

202201102112121 is a `hidden beast` number, since 2 + 0 + 220 + 110 + 211 + 2 + 121 = 666.

It is not a de Polignac number, because 202201102112121 - 2⁹ = 202201102111609 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 202201102112094 and 202201102112103.

It is not an unprimeable number, because it can be changed into a prime (202201102112171) by changing a digit.

It is a polite number, since it can be written in 71 ways as a sum of consecutive naturals, for example, 118618521 + ... + 120311078.

It is an arithmetic number, because the mean of its divisors is an integer number (5016326952000).

Almost surely, 2^{202201102112121} is an apocalyptic number.

202201102112121 is a gapful number since it is divisible by the number (21) formed by its first and last digit.

It is an amenable number.

202201102112121 is a deficient number, since it is larger than the sum of its proper divisors (158974438431879).

202201102112121 is a wasteful number, since it uses less digits than its factorization.

202201102112121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 238929739 (or 238929729 counting only the distinct ones).

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

Adding to 202201102112121 its reverse (121211201102202), we get a palindrome (323412303214323).

The spelling of 202201102112121 in words is "two hundred two trillion, two hundred one billion, one hundred two million, one hundred twelve thousand, one hundred twenty-one".