2222215951 has 2 divisors, whose sum is σ = 2222215952. Its totient is φ = 2222215950.

The previous prime is 2222215939. The next prime is 2222216023. The reversal of 2222215951 is 1595122222.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 2222215951 - 2⁷ = 2222215823 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2222215921) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1111107975 + 1111107976.

It is an arithmetic number, because the mean of its divisors is an integer number (1111107976).

Almost surely, 2^2222215951 is an apocalyptic number.

2222215951 is a deficient number, since it is larger than the sum of its proper divisors (1).

2222215951 is an equidigital number, since it uses as much as digits as its factorization.

2222215951 is an evil number, because the sum of its binary digits is even.

The product of its digits is 7200, while the sum is 31.

The square root of 2222215951 is about 47140.3855626998. The cubic root of 2222215951 is about 1304.9546528382.

The spelling of 2222215951 in words is "two billion, two hundred twenty-two million, two hundred fifteen thousand, nine hundred fifty-one".