222994969 has 2 divisors, whose sum is σ = 222994970. Its totient is φ = 222994968.

The previous prime is 222994957. The next prime is 222994973. The reversal of 222994969 is 969499222.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 134258569 + 88736400 = 11587^2 + 9420^2 .

It is a cyclic number.

It is not a de Polignac number, because 222994969 - 2⁷ = 222994841 is a prime.

It is a super-2 number, since 2×222994969² = 99453512398621922, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (222994939) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 111497484 + 111497485.

It is an arithmetic number, because the mean of its divisors is an integer number (111497485).

Almost surely, 2^222994969 is an apocalyptic number.

It is an amenable number.

222994969 is a deficient number, since it is larger than the sum of its proper divisors (1).

222994969 is an equidigital number, since it uses as much as digits as its factorization.

222994969 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1259712, while the sum is 52.

The square root of 222994969 is about 14933.0160717787. The cubic root of 222994969 is about 606.4081390841.

The spelling of 222994969 in words is "two hundred twenty-two million, nine hundred ninety-four thousand, nine hundred sixty-nine".