20320222051 has 2 divisors, whose sum is σ = 20320222052. Its totient is φ = 20320222050.

The previous prime is 20320222033. The next prime is 20320222061. The reversal of 20320222051 is 15022202302.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 20320222051 - 2¹⁵ = 20320189283 is a prime.

It is a super-2 number, since 2×20320222051² (a number of 21 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (20320222061) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10160111025 + 10160111026.

It is an arithmetic number, because the mean of its divisors is an integer number (10160111026).

Almost surely, 2^20320222051 is an apocalyptic number.

20320222051 is a deficient number, since it is larger than the sum of its proper divisors (1).

20320222051 is an equidigital number, since it uses as much as digits as its factorization.

20320222051 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 480, while the sum is 19.

Adding to 20320222051 its reverse (15022202302), we get a palindrome (35342424353).

The spelling of 20320222051 in words is "twenty billion, three hundred twenty million, two hundred twenty-two thousand, fifty-one".