1222454860 has 48 divisors (see below), whose sum is σ = 2804336640. Its totient is φ = 443925440.

The previous prime is 1222454843. The next prime is 1222454867. The reversal of 1222454860 is 684542221.

It is not an unprimeable number, because it can be changed into a prime (1222454867) 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, 178581 + ... + 185299.

It is an arithmetic number, because the mean of its divisors is an integer number (58423680).

Almost surely, 2^1222454860 is an apocalyptic number.

1222454860 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1222454860 is an abundant number, since it is smaller than the sum of its proper divisors (1581881780).

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

1222454860 is a wasteful number, since it uses less digits than its factorization.

1222454860 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7566 (or 7564 counting only the distinct ones).

The product of its (nonzero) digits is 30720, while the sum is 34.

The square root of 1222454860 is about 34963.6219519660. The cubic root of 1222454860 is about 1069.2459414823.

The spelling of 1222454860 in words is "one billion, two hundred twenty-two million, four hundred fifty-four thousand, eight hundred sixty".