20221312132 has 48 divisors (see below), whose sum is σ = 42231168000. Its totient is φ = 8283556512.

The previous prime is 20221312129. The next prime is 20221312147. The reversal of 20221312132 is 23121312202.

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, 954883 + ... + 975829.

It is an arithmetic number, because the mean of its divisors is an integer number (879816000).

Almost surely, 2^20221312132 is an apocalyptic number.

It is an amenable number.

20221312132 is an abundant number, since it is smaller than the sum of its proper divisors (22009855868).

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

20221312132 is a wasteful number, since it uses less digits than its factorization.

20221312132 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22480 (or 22478 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 19.

Adding to 20221312132 its reverse (23121312202), we get a palindrome (43342624334).

The spelling of 20221312132 in words is "twenty billion, two hundred twenty-one million, three hundred twelve thousand, one hundred thirty-two".