32220444021 has 8 divisors (see below), whose sum is σ = 43176475200. Its totient is φ = 21372354432.

The previous prime is 32220444013. The next prime is 32220444023. The reversal of 32220444021 is 12044402223.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 32220444021 - 2³ = 32220444013 is a prime.

It is a super-3 number, since 3×32220444021³ (a number of 33 digits) contains 333 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 32220443982 and 32220444000.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (32220444023) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 26984700 + ... + 26985893.

It is an arithmetic number, because the mean of its divisors is an integer number (5397059400).

Almost surely, 2^32220444021 is an apocalyptic number.

It is an amenable number.

32220444021 is a deficient number, since it is larger than the sum of its proper divisors (10956031179).

32220444021 is a wasteful number, since it uses less digits than its factorization.

32220444021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 53970795.

The product of its (nonzero) digits is 3072, while the sum is 24.

Adding to 32220444021 its reverse (12044402223), we get a palindrome (44264846244).

The spelling of 32220444021 in words is "thirty-two billion, two hundred twenty million, four hundred forty-four thousand, twenty-one".