20332121012 has 48 divisors (see below), whose sum is σ = 40983196800. Its totient is φ = 8645553792.

The previous prime is 20332120997. The next prime is 20332121071. The reversal of 20332121012 is 21012123302.

It is a super-2 number, since 2×20332121012² (a number of 21 digits) contains 22 as substring.

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, 4657943 + ... + 4662305.

It is an arithmetic number, because the mean of its divisors is an integer number (853816600).

Almost surely, 2^20332121012 is an apocalyptic number.

It is an amenable number.

20332121012 is an abundant number, since it is smaller than the sum of its proper divisors (20651075788).

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

20332121012 is a wasteful number, since it uses less digits than its factorization.

20332121012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5640 (or 5638 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 17.

Adding to 20332121012 its reverse (21012123302), we get a palindrome (41344244314).

The spelling of 20332121012 in words is "twenty billion, three hundred thirty-two million, one hundred twenty-one thousand, twelve".