1222860460 has 12 divisors (see below), whose sum is σ = 2568007008. Its totient is φ = 489144176.

The previous prime is 1222860451. The next prime is 1222860479. The reversal of 1222860460 is 640682221.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 30571492 + ... + 30571531.

It is an arithmetic number, because the mean of its divisors is an integer number (214000584).

Almost surely, 2^1222860460 is an apocalyptic number.

1222860460 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1222860460 is an abundant number, since it is smaller than the sum of its proper divisors (1345146548).

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

1222860460 is a wasteful number, since it uses less digits than its factorization.

1222860460 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 61143032 (or 61143030 counting only the distinct ones).

The product of its (nonzero) digits is 9216, while the sum is 31.

The square root of 1222860460 is about 34969.4217853255. The cubic root of 1222860460 is about 1069.3641839392.

The spelling of 1222860460 in words is "one billion, two hundred twenty-two million, eight hundred sixty thousand, four hundred sixty".