20212321121132 has 48 divisors (see below), whose sum is σ = 43079729817600. Its totient is φ = 8109502686912.

The previous prime is 20212321121101. The next prime is 20212321121137. The reversal of 20212321121132 is 23112112321202.

It is a super-2 number, since 2×20212321121132² (a number of 27 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (23).

It is a junction number, because it is equal to n+sod(n) for n = 20212321121098 and 20212321121107.

It is not an unprimeable number, because it can be changed into a prime (20212321121137) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 333859007 + ... + 333919542.

It is an arithmetic number, because the mean of its divisors is an integer number (897494371200).

Almost surely, 2^{20212321121132} is an apocalyptic number.

It is an amenable number.

20212321121132 is an abundant number, since it is smaller than the sum of its proper divisors (22867408696468).

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

20212321121132 is a wasteful number, since it uses less digits than its factorization.

20212321121132 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 667778630 (or 667778628 counting only the distinct ones).

The product of its (nonzero) digits is 576, while the sum is 23.

Adding to 20212321121132 its reverse (23112112321202), we get a palindrome (43324433442334).

The spelling of 20212321121132 in words is "twenty trillion, two hundred twelve billion, three hundred twenty-one million, one hundred twenty-one thousand, one hundred thirty-two".