1222563056 has 80 divisors (see below), whose sum is σ = 2929395840. Its totient is φ = 485948160.

The previous prime is 1222563053. The next prime is 1222563059. The reversal of 1222563056 is 6503652221.

It is an interprime number because it is at equal distance from previous prime (1222563053) and next prime (1222563059).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1222563053) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 29411 + ... + 57533.

It is an arithmetic number, because the mean of its divisors is an integer number (36617448).

Almost surely, 2^1222563056 is an apocalyptic number.

1222563056 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1222563056, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1464697920).

1222563056 is an abundant number, since it is smaller than the sum of its proper divisors (1706832784).

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

1222563056 is a wasteful number, since it uses less digits than its factorization.

1222563056 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28174 (or 28168 counting only the distinct ones).

The product of its (nonzero) digits is 21600, while the sum is 32.

The square root of 1222563056 is about 34965.1691830599. The cubic root of 1222563056 is about 1069.2774858566.

The spelling of 1222563056 in words is "one billion, two hundred twenty-two million, five hundred sixty-three thousand, fifty-six".