222212056 has 16 divisors (see below), whose sum is σ = 454524840. Its totient is φ = 101005440.

The previous prime is 222212009. The next prime is 222212063. The reversal of 222212056 is 650212222.

It is a happy number.

It is a super-4 number, since 4×222212056⁴ (a number of 34 digits) contains 4444 as substring.

It is a Harshad number since it is a multiple of its sum of digits (22).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1262481 + ... + 1262656.

Almost surely, 2^222212056 is an apocalyptic number.

It is an amenable number.

222212056 is an abundant number, since it is smaller than the sum of its proper divisors (232312784).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

222212056 is a wasteful number, since it uses less digits than its factorization.

222212056 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2525154 (or 2525150 counting only the distinct ones).

The product of its (nonzero) digits is 960, while the sum is 22.

The square root of 222212056 is about 14906.7788606392. The cubic root of 222212056 is about 605.6976275106.

Adding to 222212056 its reverse (650212222), we get a palindrome (872424278).

The spelling of 222212056 in words is "two hundred twenty-two million, two hundred twelve thousand, fifty-six".