1222582656 has 32 divisors (see below), whose sum is σ = 3247486200. Its totient is φ = 407527424.

The previous prime is 1222582651. The next prime is 1222582661. The reversal of 1222582656 is 6562852221.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (1222582651) and next prime (1222582661).

It is a tau number, because it is divible by the number of its divisors (32).

It is a super-3 number, since 3×1222582656³ (a number of 28 digits) contains 333 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1222582651) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1591521 + ... + 1592288.

Almost surely, 2^1222582656 is an apocalyptic number.

1222582656 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

1222582656 is an abundant number, since it is smaller than the sum of its proper divisors (2024903544).

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

1222582656 is an equidigital number, since it uses as much as digits as its factorization.

1222582656 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3183826 (or 3183814 counting only the distinct ones).

The product of its digits is 115200, while the sum is 39.

The square root of 1222582656 is about 34965.4494608606. The cubic root of 1222582656 is about 1069.2832000067.

The spelling of 1222582656 in words is "one billion, two hundred twenty-two million, five hundred eighty-two thousand, six hundred fifty-six".