332221320021 has 8 divisors (see below), whose sum is σ = 446148535840. Its totient is φ = 219887492112.

The previous prime is 332221320017. The next prime is 332221320077. The reversal of 332221320021 is 120023122233.

It is a happy number.

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

It is not a de Polignac number, because 332221320021 - 2² = 332221320017 is a prime.

It is a super-2 number, since 2×332221320021² (a number of 24 digits) contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 332221320021.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (332221320001) 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, 398346490 + ... + 398347323.

It is an arithmetic number, because the mean of its divisors is an integer number (55768566980).

Almost surely, 2^332221320021 is an apocalyptic number.

It is an amenable number.

332221320021 is a deficient number, since it is larger than the sum of its proper divisors (113927215819).

332221320021 is a wasteful number, since it uses less digits than its factorization.

332221320021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 796693955.

The product of its (nonzero) digits is 864, while the sum is 21.

Adding to 332221320021 its reverse (120023122233), we get a palindrome (452244442254).

The spelling of 332221320021 in words is "three hundred thirty-two billion, two hundred twenty-one million, three hundred twenty thousand, twenty-one".