20022420051 has 20 divisors (see below), whose sum is σ = 30044187712. Its totient is φ = 13288410288.

The previous prime is 20022420029. The next prime is 20022420073. The reversal of 20022420051 is 15002422002.

It is an interprime number because it is at equal distance from previous prime (20022420029) and next prime (20022420073).

It is not a de Polignac number, because 20022420051 - 2¹⁸ = 20022157907 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (20022428051) by changing a digit.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 536176 + ... + 572301.

Almost surely, 2^20022420051 is an apocalyptic number.

20022420051 is a deficient number, since it is larger than the sum of its proper divisors (10021767661).

20022420051 is a wasteful number, since it uses less digits than its factorization.

20022420051 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1108712 (or 1108703 counting only the distinct ones).

The product of its (nonzero) digits is 320, while the sum is 18.

Adding to 20022420051 its reverse (15002422002), we get a palindrome (35024842053).

The spelling of 20022420051 in words is "twenty billion, twenty-two million, four hundred twenty thousand, fifty-one".