222130637 has 2 divisors, whose sum is σ = 222130638. Its totient is φ = 222130636.

The previous prime is 222130591. The next prime is 222130639. The reversal of 222130637 is 736031222.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 164583241 + 57547396 = 12829^2 + 7586^2 .

It is a cyclic number.

It is not a de Polignac number, because 222130637 - 2¹⁰ = 222129613 is a prime.

Together with 222130639, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (222130639) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 111065318 + 111065319.

It is an arithmetic number, because the mean of its divisors is an integer number (111065319).

Almost surely, 2^222130637 is an apocalyptic number.

It is an amenable number.

222130637 is a deficient number, since it is larger than the sum of its proper divisors (1).

222130637 is an equidigital number, since it uses as much as digits as its factorization.

222130637 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 3024, while the sum is 26.

The square root of 222130637 is about 14904.0476716897. The cubic root of 222130637 is about 605.6236421468.

Adding to 222130637 its reverse (736031222), we get a palindrome (958161859).

The spelling of 222130637 in words is "two hundred twenty-two million, one hundred thirty thousand, six hundred thirty-seven".