1222165480 has 32 divisors (see below), whose sum is σ = 2750941440. Its totient is φ = 488676160.

The previous prime is 1222165429. The next prime is 1222165493. The reversal of 1222165480 is 845612221.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 146625 + ... + 154735.

It is an arithmetic number, because the mean of its divisors is an integer number (85966920).

Almost surely, 2^1222165480 is an apocalyptic number.

1222165480 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1222165480 is an abundant number, since it is smaller than the sum of its proper divisors (1528775960).

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

1222165480 is a wasteful number, since it uses less digits than its factorization.

1222165480 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11889 (or 11885 counting only the distinct ones).

The product of its (nonzero) digits is 7680, while the sum is 31.

The square root of 1222165480 is about 34959.4834057942. The cubic root of 1222165480 is about 1069.1615640493.

The spelling of 1222165480 in words is "one billion, two hundred twenty-two million, one hundred sixty-five thousand, four hundred eighty".