32221001021 has 32 divisors (see below), whose sum is σ = 37806912000. Its totient is φ = 27150742080.

The previous prime is 32221001009. The next prime is 32221001041. The reversal of 32221001021 is 12010012223.

It is a happy number.

It is not a de Polignac number, because 32221001021 - 2³⁰ = 31147259197 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 32221000987 and 32221001005.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (32221001041) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 2078726 + ... + 2094168.

It is an arithmetic number, because the mean of its divisors is an integer number (1181466000).

Almost surely, 2^32221001021 is an apocalyptic number.

It is an amenable number.

32221001021 is a deficient number, since it is larger than the sum of its proper divisors (5585910979).

32221001021 is a wasteful number, since it uses less digits than its factorization.

32221001021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15689.

The product of its (nonzero) digits is 48, while the sum is 14.

Adding to 32221001021 its reverse (12010012223), we get a palindrome (44231013244).

The spelling of 32221001021 in words is "thirty-two billion, two hundred twenty-one million, one thousand, twenty-one".