222000000631 has 2 divisors, whose sum is σ = 222000000632. Its totient is φ = 222000000630.

The previous prime is 222000000589. The next prime is 222000000667. The reversal of 222000000631 is 136000000222.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 222000000631 - 2²⁷ = 221865782903 is a prime.

It is a super-2 number, since 2×222000000631² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (222000000671) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 111000000315 + 111000000316.

It is an arithmetic number, because the mean of its divisors is an integer number (111000000316).

Almost surely, 2^222000000631 is an apocalyptic number.

222000000631 is a deficient number, since it is larger than the sum of its proper divisors (1).

222000000631 is an equidigital number, since it uses as much as digits as its factorization.

222000000631 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 144, while the sum is 16.

Adding to 222000000631 its reverse (136000000222), we get a palindrome (358000000853).

The spelling of 222000000631 in words is "two hundred twenty-two billion, six hundred thirty-one", and thus it is an aban number.