1222072056 has 64 divisors (see below), whose sum is σ = 3398551200. Its totient is φ = 406888704.

The previous prime is 1222072043. The next prime is 1222072067. The reversal of 1222072056 is 6502702221.

It is a super-2 number, since 2×1222072056² = 2986920220112134272, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 220390 + ... + 225866.

Almost surely, 2^1222072056 is an apocalyptic number.

It is an amenable number.

1222072056 is an abundant number, since it is smaller than the sum of its proper divisors (2176479144).

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

1222072056 is a wasteful number, since it uses less digits than its factorization.

1222072056 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6525 (or 6515 counting only the distinct ones).

The product of its (nonzero) digits is 3360, while the sum is 27.

The square root of 1222072056 is about 34958.1472049078. The cubic root of 1222072056 is about 1069.1343206313.

Adding to 1222072056 its reverse (6502702221), we get a palindrome (7724774277).

The spelling of 1222072056 in words is "one billion, two hundred twenty-two million, seventy-two thousand, fifty-six".