20221211102121 has 16 divisors (see below), whose sum is σ = 29957777521920. Its totient is φ = 13480614918000.

The previous prime is 20221211102117. The next prime is 20221211102159. The reversal of 20221211102121 is 12120111212202.

20221211102121 is a `hidden beast` number, since 20 + 221 + 211 + 1 + 0 + 212 + 1 = 666.

It is not a de Polignac number, because 20221211102121 - 2² = 20221211102117 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 20221211102094 and 20221211102103.

It is not an unprimeable number, because it can be changed into a prime (20221211101121) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3407985 + ... + 7215038.

It is an arithmetic number, because the mean of its divisors is an integer number (1872361095120).

Almost surely, 2^{20221211102121} is an apocalyptic number.

It is an amenable number.

20221211102121 is a deficient number, since it is larger than the sum of its proper divisors (9736566419799).

20221211102121 is a wasteful number, since it uses less digits than its factorization.

20221211102121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10693533 (or 10693527 counting only the distinct ones).

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

Adding to 20221211102121 its reverse (12120111212202), we get a palindrome (32341322314323).

The spelling of 20221211102121 in words is "twenty trillion, two hundred twenty-one billion, two hundred eleven million, one hundred two thousand, one hundred twenty-one".