222212369 has 2 divisors, whose sum is σ = 222212370. Its totient is φ = 222212368.

The previous prime is 222212359. The next prime is 222212377. The reversal of 222212369 is 963212222.

222212369 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 181252369 + 40960000 = 13463^2 + 6400^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-222212369 is a prime.

It is a super-2 number, since 2×222212369² = 98756673873184322, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (222212359) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 111106184 + 111106185.

It is an arithmetic number, because the mean of its divisors is an integer number (111106185).

Almost surely, 2^222212369 is an apocalyptic number.

It is an amenable number.

222212369 is a deficient number, since it is larger than the sum of its proper divisors (1).

222212369 is an equidigital number, since it uses as much as digits as its factorization.

222212369 is an evil number, because the sum of its binary digits is even.

The product of its digits is 5184, while the sum is 29.

The square root of 222212369 is about 14906.7893592148. The cubic root of 222212369 is about 605.6979118986.

The spelling of 222212369 in words is "two hundred twenty-two million, two hundred twelve thousand, three hundred sixty-nine".