22120012051 has 2 divisors, whose sum is σ = 22120012052. Its totient is φ = 22120012050.

The previous prime is 22120011997. The next prime is 22120012063. The reversal of 22120012051 is 15021002122.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 22120012051 - 2¹³ = 22120003859 is a prime.

It is not a weakly prime, because it can be changed into another prime (22120012091) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11060006025 + 11060006026.

It is an arithmetic number, because the mean of its divisors is an integer number (11060006026).

Almost surely, 2^22120012051 is an apocalyptic number.

22120012051 is a deficient number, since it is larger than the sum of its proper divisors (1).

22120012051 is an equidigital number, since it uses as much as digits as its factorization.

22120012051 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 80, while the sum is 16.

Adding to 22120012051 its reverse (15021002122), we get a palindrome (37141014173).

The spelling of 22120012051 in words is "twenty-two billion, one hundred twenty million, twelve thousand, fifty-one".