32312500521221 has 4 divisors (see below), whose sum is σ = 33354839247744. Its totient is φ = 31270161794700.

The previous prime is 32312500521157. The next prime is 32312500521241. The reversal of 32312500521221 is 12212500521323.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 32312500521221 - 2⁶ = 32312500521157 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (32312500521241) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 521169363215 + ... + 521169363276.

It is an arithmetic number, because the mean of its divisors is an integer number (8338709811936).

Almost surely, 2^{32312500521221} is an apocalyptic number.

32312500521221 is a gapful number since it is divisible by the number (31) formed by its first and last digit.

It is an amenable number.

32312500521221 is a deficient number, since it is larger than the sum of its proper divisors (1042338726523).

32312500521221 is a wasteful number, since it uses less digits than its factorization.

32312500521221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1042338726522.

The product of its (nonzero) digits is 7200, while the sum is 29.

The spelling of 32312500521221 in words is "thirty-two trillion, three hundred twelve billion, five hundred million, five hundred twenty-one thousand, two hundred twenty-one".