211122020120121 has 40 divisors (see below), whose sum is σ = 344129059441728. Its totient is φ = 127923597324000.

The previous prime is 211122020120111. The next prime is 211122020120129. The reversal of 211122020120121 is 121021020221112.

211122020120121 is a `hidden beast` number, since 21 + 1 + 1 + 220 + 201 + 201 + 21 = 666.

It is not a de Polignac number, because 211122020120121 - 2²¹ = 211122018022969 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 211122020120094 and 211122020120103.

It is not an unprimeable number, because it can be changed into a prime (211122020120129) by changing a digit.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 23068890 + ... + 30893651.

Almost surely, 2^{211122020120121} is an apocalyptic number.

It is an amenable number.

211122020120121 is a deficient number, since it is larger than the sum of its proper divisors (133007039321607).

211122020120121 is a wasteful number, since it uses less digits than its factorization.

211122020120121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 53966955 (or 53966946 counting only the distinct ones).

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

Adding to 211122020120121 its reverse (121021020221112), we get a palindrome (332143040341233).

The spelling of 211122020120121 in words is "two hundred eleven trillion, one hundred twenty-two billion, twenty million, one hundred twenty thousand, one hundred twenty-one".