222250631 has 2 divisors, whose sum is σ = 222250632. Its totient is φ = 222250630.

The previous prime is 222250603. The next prime is 222250643. The reversal of 222250631 is 136052222.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 222250631 - 2¹⁰ = 222249607 is a prime.

It is a super-2 number, since 2×222250631² = 98790685959796322, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 222250597 and 222250606.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (222250681) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 111125315 + 111125316.

It is an arithmetic number, because the mean of its divisors is an integer number (111125316).

Almost surely, 2^222250631 is an apocalyptic number.

222250631 is a deficient number, since it is larger than the sum of its proper divisors (1).

222250631 is an equidigital number, since it uses as much as digits as its factorization.

222250631 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1440, while the sum is 23.

The square root of 222250631 is about 14908.0726789213. The cubic root of 222250631 is about 605.7326742651.

The spelling of 222250631 in words is "two hundred twenty-two million, two hundred fifty thousand, six hundred thirty-one".