1322121332 has 18 divisors (see below), whose sum is σ = 2691461682. Its totient is φ = 566623344.

The previous prime is 1322121329. The next prime is 1322121343. The reversal of 1322121332 is 2331212231.

It can be written as a sum of positive squares in only one way, i.e., 926350096 + 395771236 = 30436^2 + 19894^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 3372563 + ... + 3372954.

It is an arithmetic number, because the mean of its divisors is an integer number (149525649).

Almost surely, 2^1322121332 is an apocalyptic number.

It is an amenable number.

1322121332 is an abundant number, since it is smaller than the sum of its proper divisors (1369340350).

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

1322121332 is a wasteful number, since it uses less digits than its factorization.

1322121332 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6745535 (or 6745526 counting only the distinct ones).

The product of its digits is 432, while the sum is 20.

The square root of 1322121332 is about 36360.9864002615. The cubic root of 1322121332 is about 1097.5486270728.

Adding to 1322121332 its reverse (2331212231), we get a palindrome (3653333563).

The spelling of 1322121332 in words is "one billion, three hundred twenty-two million, one hundred twenty-one thousand, three hundred thirty-two".