222932993 has 2 divisors, whose sum is σ = 222932994. Its totient is φ = 222932992.

The previous prime is 222932989. The next prime is 222933017. The reversal of 222932993 is 399239222.

222932993 is nontrivially palindromic in base 9.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 167236624 + 55696369 = 12932^2 + 7463^2 .

It is a cyclic number.

It is not a de Polignac number, because 222932993 - 2² = 222932989 is a prime.

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 222932993.

It is not a weakly prime, because it can be changed into another prime (222932903) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 111466496 + 111466497.

It is an arithmetic number, because the mean of its divisors is an integer number (111466497).

Almost surely, 2^222932993 is an apocalyptic number.

It is an amenable number.

222932993 is a deficient number, since it is larger than the sum of its proper divisors (1).

222932993 is an equidigital number, since it uses as much as digits as its factorization.

222932993 is an evil number, because the sum of its binary digits is even.

The product of its digits is 104976, while the sum is 41.

The square root of 222932993 is about 14930.9407942032. The cubic root of 222932993 is about 606.3519551064.

The spelling of 222932993 in words is "two hundred twenty-two million, nine hundred thirty-two thousand, nine hundred ninety-three".