1322220132 has 24 divisors (see below), whose sum is σ = 3427978400. Its totient is φ = 440740008.

The previous prime is 1322220131. The next prime is 1322220157. The reversal of 1322220132 is 2310222231.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is not an unprimeable number, because it can be changed into a prime (1322220131) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6121282 + ... + 6121497.

Almost surely, 2^1322220132 is an apocalyptic number.

1322220132 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

1322220132 is an abundant number, since it is smaller than the sum of its proper divisors (2105758268).

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

1322220132 is a wasteful number, since it uses less digits than its factorization.

1322220132 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12242792 (or 12242784 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 18.

The square root of 1322220132 is about 36362.3449738875. The cubic root of 1322220132 is about 1097.5759657396.

Adding to 1322220132 its reverse (2310222231), we get a palindrome (3632442363).

The spelling of 1322220132 in words is "one billion, three hundred twenty-two million, two hundred twenty thousand, one hundred thirty-two".