1222331120 has 20 divisors (see below), whose sum is σ = 2841920040. Its totient is φ = 488932416.

The previous prime is 1222331119. The next prime is 1222331129. The reversal of 1222331120 is 211332221.

It is a tau number, because it is divible by the number of its divisors (20).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1222331129) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7639490 + ... + 7639649.

It is an arithmetic number, because the mean of its divisors is an integer number (142096002).

Almost surely, 2^1222331120 is an apocalyptic number.

1222331120 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1222331120 is an abundant number, since it is smaller than the sum of its proper divisors (1619588920).

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

1222331120 is a wasteful number, since it uses less digits than its factorization.

1222331120 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15279152 (or 15279146 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 17.

The square root of 1222331120 is about 34961.8523536726. The cubic root of 1222331120 is about 1069.2098629975.

Adding to 1222331120 its reverse (211332221), we get a palindrome (1433663341).

The spelling of 1222331120 in words is "one billion, two hundred twenty-two million, three hundred thirty-one thousand, one hundred twenty".