22001020051 has 2 divisors, whose sum is σ = 22001020052. Its totient is φ = 22001020050.

The previous prime is 22001020043. The next prime is 22001020103. The reversal of 22001020051 is 15002010022.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 22001020051 - 2³ = 22001020043 is a prime.

It is not a weakly prime, because it can be changed into another prime (22001020351) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11000510025 + 11000510026.

It is an arithmetic number, because the mean of its divisors is an integer number (11000510026).

Almost surely, 2^22001020051 is an apocalyptic number.

22001020051 is a deficient number, since it is larger than the sum of its proper divisors (1).

22001020051 is an equidigital number, since it uses as much as digits as its factorization.

22001020051 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 40, while the sum is 13.

Adding to 22001020051 its reverse (15002010022), we get a palindrome (37003030073).

The spelling of 22001020051 in words is "twenty-two billion, one million, twenty thousand, fifty-one".