20220020012121 has 16 divisors (see below), whose sum is σ = 27140797246464. Its totient is φ = 13389849866624.

The previous prime is 20220020011993. The next prime is 20220020012123. The reversal of 20220020012121 is 12121002002202.

It is a cyclic number.

It is not a de Polignac number, because 20220020012121 - 2⁷ = 20220020011993 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 20220020012121.

It is not an unprimeable number, because it can be changed into a prime (20220020012123) 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, 27360825 + ... + 28090118.

It is an arithmetic number, because the mean of its divisors is an integer number (1696299827904).

Almost surely, 2^{20220020012121} is an apocalyptic number.

It is an amenable number.

20220020012121 is a deficient number, since it is larger than the sum of its proper divisors (6920777234343).

20220020012121 is a wasteful number, since it uses less digits than its factorization.

20220020012121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 55451760.

The product of its (nonzero) digits is 64, while the sum is 15.

Adding to 20220020012121 its reverse (12121002002202), we get a palindrome (32341022014323).

The spelling of 20220020012121 in words is "twenty trillion, two hundred twenty billion, twenty million, twelve thousand, one hundred twenty-one".