222202979 has 2 divisors, whose sum is σ = 222202980. Its totient is φ = 222202978.

The previous prime is 222202961. The next prime is 222202987. The reversal of 222202979 is 979202222.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-222202979 is a prime.

It is not a weakly prime, because it can be changed into another prime (222202919) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 111101489 + 111101490.

It is an arithmetic number, because the mean of its divisors is an integer number (111101490).

Almost surely, 2^222202979 is an apocalyptic number.

222202979 is a deficient number, since it is larger than the sum of its proper divisors (1).

222202979 is an equidigital number, since it uses as much as digits as its factorization.

222202979 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 18144, while the sum is 35.

The square root of 222202979 is about 14906.4743987302. The cubic root of 222202979 is about 605.6893801450.

The spelling of 222202979 in words is "two hundred twenty-two million, two hundred two thousand, nine hundred seventy-nine".