20200022121 has 16 divisors (see below), whose sum is σ = 28355040000. Its totient is φ = 12756049488.

The previous prime is 20200022107. The next prime is 20200022137. The reversal of 20200022121 is 12122000202.

It is not a de Polignac number, because 20200022121 - 2⁹ = 20200021609 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 20200022097 and 20200022106.

It is not an unprimeable number, because it can be changed into a prime (20200022221) 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, 442630 + ... + 486128.

It is an arithmetic number, because the mean of its divisors is an integer number (1772190000).

Almost surely, 2^20200022121 is an apocalyptic number.

It is an amenable number.

20200022121 is a deficient number, since it is larger than the sum of its proper divisors (8155017879).

20200022121 is a wasteful number, since it uses less digits than its factorization.

20200022121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 51668.

The product of its (nonzero) digits is 32, while the sum is 12.

Adding to 20200022121 its reverse (12122000202), we get a palindrome (32322022323).

The spelling of 20200022121 in words is "twenty billion, two hundred million, twenty-two thousand, one hundred twenty-one".