32122130221 has 4 divisors (see below), whose sum is σ = 32266175872. Its totient is φ = 31978084572.

The previous prime is 32122130191. The next prime is 32122130233. The reversal of 32122130221 is 12203122123.

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, and also an emirpimes, since its reverse is a distinct semiprime: 12203122123 = 57221 ⋅213263.

It is a cyclic number.

It is not a de Polignac number, because 32122130221 - 2⁷ = 32122130093 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 (32122130321) 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, 72022491 + ... + 72022936.

It is an arithmetic number, because the mean of its divisors is an integer number (8066543968).

Almost surely, 2^32122130221 is an apocalyptic number.

It is an amenable number.

32122130221 is a deficient number, since it is larger than the sum of its proper divisors (144045651).

32122130221 is a wasteful number, since it uses less digits than its factorization.

32122130221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 144045650.

The product of its (nonzero) digits is 288, while the sum is 19.

Adding to 32122130221 its reverse (12203122123), we get a palindrome (44325252344).

The spelling of 32122130221 in words is "thirty-two billion, one hundred twenty-two million, one hundred thirty thousand, two hundred twenty-one".