1222333900 has 36 divisors (see below), whose sum is σ = 2688815752. Its totient is φ = 482232960.

The previous prime is 1222333843. The next prime is 1222333913. The reversal of 1222333900 is 93332221.

It is a Harshad number since it is a multiple of its sum of digits (25).

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 76422 + ... + 91021.

Almost surely, 2^1222333900 is an apocalyptic number.

1222333900 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1222333900 is an abundant number, since it is smaller than the sum of its proper divisors (1466481852).

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

1222333900 is a wasteful number, since it uses less digits than its factorization.

1222333900 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 167530 (or 167523 counting only the distinct ones).

The product of its (nonzero) digits is 1944, while the sum is 25.

The square root of 1222333900 is about 34961.8921112688. The cubic root of 1222333900 is about 1069.2106735801.

The spelling of 1222333900 in words is "one billion, two hundred twenty-two million, three hundred thirty-three thousand, nine hundred".