1222443860 has 48 divisors (see below), whose sum is σ = 2803792320. Its totient is φ = 444003840.

The previous prime is 1222443847. The next prime is 1222443883. The reversal of 1222443860 is 683442221.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 219227 + ... + 224733.

It is an arithmetic number, because the mean of its divisors is an integer number (58412340).

Almost surely, 2^1222443860 is an apocalyptic number.

1222443860 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1222443860 is an abundant number, since it is smaller than the sum of its proper divisors (1581348460).

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

1222443860 is a wasteful number, since it uses less digits than its factorization.

1222443860 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6536 (or 6534 counting only the distinct ones).

The product of its (nonzero) digits is 18432, while the sum is 32.

The square root of 1222443860 is about 34963.4646452551. The cubic root of 1222443860 is about 1069.2427343453.

The spelling of 1222443860 in words is "one billion, two hundred twenty-two million, four hundred forty-three thousand, eight hundred sixty".