1222331142 has 32 divisors (see below), whose sum is σ = 2576257920. Its totient is φ = 385560000.

The previous prime is 1222331129. The next prime is 1222331171. The reversal of 1222331142 is 2411332221.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 103017 + ... + 114267.

It is an arithmetic number, because the mean of its divisors is an integer number (80508060).

Almost surely, 2^1222331142 is an apocalyptic number.

1222331142 is an abundant number, since it is smaller than the sum of its proper divisors (1353926778).

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

1222331142 is a wasteful number, since it uses less digits than its factorization.

1222331142 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12228.

The product of its digits is 576, while the sum is 21.

The square root of 1222331142 is about 34961.8526683012. The cubic root of 1222331142 is about 1069.2098694122.

Adding to 1222331142 its reverse (2411332221), we get a palindrome (3633663363).

It can be divided in two parts, 12223 and 31142, that added together give a triangular number (43365 = T₂₉₄).

The spelling of 1222331142 in words is "one billion, two hundred twenty-two million, three hundred thirty-one thousand, one hundred forty-two".