722215127 has 2 divisors, whose sum is σ = 722215128. Its totient is φ = 722215126.

The previous prime is 722215073. The next prime is 722215129. The reversal of 722215127 is 721512227.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 722215127 - 2¹⁸ = 721952983 is a prime.

It is a super-2 number, since 2×722215127² = 1043189379335252258, which contains 22 as substring.

Together with 722215129, it forms a pair of twin primes.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 722215127.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (722215129) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 361107563 + 361107564.

It is an arithmetic number, because the mean of its divisors is an integer number (361107564).

Almost surely, 2^722215127 is an apocalyptic number.

722215127 is a deficient number, since it is larger than the sum of its proper divisors (1).

722215127 is an equidigital number, since it uses as much as digits as its factorization.

722215127 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 3920, while the sum is 29.

The square root of 722215127 is about 26874.0604859035. The cubic root of 722215127 is about 897.1991639211.

The spelling of 722215127 in words is "seven hundred twenty-two million, two hundred fifteen thousand, one hundred twenty-seven".