222772775 has 6 divisors (see below), whose sum is σ = 276238272. Its totient is φ = 178218200.

The previous prime is 222772769. The next prime is 222772799. The reversal of 222772775 is 577277222.

It is not a de Polignac number, because 222772775 - 2¹⁶ = 222707239 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 4455431 + ... + 4455480.

It is an arithmetic number, because the mean of its divisors is an integer number (46039712).

Almost surely, 2^222772775 is an apocalyptic number.

222772775 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

222772775 is a deficient number, since it is larger than the sum of its proper divisors (53465497).

222772775 is an equidigital number, since it uses as much as digits as its factorization.

222772775 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8910921 (or 8910916 counting only the distinct ones).

The product of its digits is 192080, while the sum is 41.

The square root of 222772775 is about 14925.5745283054. The cubic root of 222772775 is about 606.2066621516.

It can be divided in two parts, 22277 and 2775, that added together give a palindrome (25052).

The spelling of 222772775 in words is "two hundred twenty-two million, seven hundred seventy-two thousand, seven hundred seventy-five".