32122020021 has 24 divisors (see below), whose sum is σ = 53654366304. Its totient is φ = 16943482080.

The previous prime is 32122019981. The next prime is 32122020109. The reversal of 32122020021 is 12002022123.

It is a happy number.

It is not a de Polignac number, because 32122020021 - 2¹⁰ = 32122018997 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (32122060021) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 8402595 + ... + 8406416.

It is an arithmetic number, because the mean of its divisors is an integer number (2235598596).

Almost surely, 2^32122020021 is an apocalyptic number.

It is an amenable number.

32122020021 is a deficient number, since it is larger than the sum of its proper divisors (21532346283).

32122020021 is a wasteful number, since it uses less digits than its factorization.

32122020021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16809041 (or 16809034 counting only the distinct ones).

The product of its (nonzero) digits is 96, while the sum is 15.

Adding to 32122020021 its reverse (12002022123), we get a palindrome (44124042144).

The spelling of 32122020021 in words is "thirty-two billion, one hundred twenty-two million, twenty thousand, twenty-one".