32121675220 has 12 divisors (see below), whose sum is σ = 67455518004. Its totient is φ = 12848670080.

The previous prime is 32121675059. The next prime is 32121675251. The reversal of 32121675220 is 2257612123.

It can be written as a sum of positive squares in 2 ways, for example, as 20783258896 + 11338416324 = 144164^2 + 106482^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 803041861 + ... + 803041900.

It is an arithmetic number, because the mean of its divisors is an integer number (5621293167).

Almost surely, 2^32121675220 is an apocalyptic number.

It is an amenable number.

32121675220 is an abundant number, since it is smaller than the sum of its proper divisors (35333842784).

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

32121675220 is a wasteful number, since it uses less digits than its factorization.

32121675220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1606083770 (or 1606083768 counting only the distinct ones).

The product of its (nonzero) digits is 10080, while the sum is 31.

The spelling of 32121675220 in words is "thirty-two billion, one hundred twenty-one million, six hundred seventy-five thousand, two hundred twenty".