722214431 has 2 divisors, whose sum is σ = 722214432. Its totient is φ = 722214430.

The previous prime is 722214419. The next prime is 722214439. The reversal of 722214431 is 134412227.

722214431 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 722214431 - 2¹⁴ = 722198047 is a prime.

It is a super-2 number, since 2×722214431² = 1043187368689307522, which contains 22 as substring.

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 722214431.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (722214439) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 361107215 + 361107216.

It is an arithmetic number, because the mean of its divisors is an integer number (361107216).

Almost surely, 2^722214431 is an apocalyptic number.

722214431 is a deficient number, since it is larger than the sum of its proper divisors (1).

722214431 is an equidigital number, since it uses as much as digits as its factorization.

722214431 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 2688, while the sum is 26.

The square root of 722214431 is about 26874.0475366105. The cubic root of 722214431 is about 897.1988757102.

Adding to 722214431 its reverse (134412227), we get a palindrome (856626658).

The spelling of 722214431 in words is "seven hundred twenty-two million, two hundred fourteen thousand, four hundred thirty-one".