32100220100020 has 24 divisors (see below), whose sum is σ = 69734960908200. Its totient is φ = 12397326383232.

The previous prime is 32100220099967. The next prime is 32100220100051. The reversal of 32100220100020 is 2000102200123.

It can be written as a sum of positive squares in 4 ways, for example, as 8711505728676 + 23388714371344 = 2951526^2 + 4836188^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 27672602955 + ... + 27672604114.

It is an arithmetic number, because the mean of its divisors is an integer number (2905623371175).

Almost surely, 2^{32100220100020} is an apocalyptic number.

It is an amenable number.

32100220100020 is an abundant number, since it is smaller than the sum of its proper divisors (37634740808180).

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

32100220100020 is a wasteful number, since it uses less digits than its factorization.

32100220100020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 55345207107 (or 55345207105 counting only the distinct ones).

The product of its (nonzero) digits is 48, while the sum is 13.

Adding to 32100220100020 its reverse (2000102200123), we get a palindrome (34100322300143).

The spelling of 32100220100020 in words is "thirty-two trillion, one hundred billion, two hundred twenty million, one hundred thousand, twenty".