332220421 has 8 divisors (see below), whose sum is σ = 358283520. Its totient is φ = 306229872.

The previous prime is 332220401. The next prime is 332220437. The reversal of 332220421 is 124022233.

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

It is not a de Polignac number, because 332220421 - 2⁵ = 332220389 is a prime.

It is a super-2 number, since 2×332220421² = 220740816258834482, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (332220401) 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, 8425 + ... + 27118.

It is an arithmetic number, because the mean of its divisors is an integer number (44785440).

Almost surely, 2^332220421 is an apocalyptic number.

It is an amenable number.

332220421 is a deficient number, since it is larger than the sum of its proper divisors (26063099).

332220421 is a wasteful number, since it uses less digits than its factorization.

332220421 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 36275.

The product of its (nonzero) digits is 576, while the sum is 19.

The square root of 332220421 is about 18226.9147416671. The cubic root of 332220421 is about 692.5887636613.

Adding to 332220421 its reverse (124022233), we get a palindrome (456242654).

The spelling of 332220421 in words is "three hundred thirty-two million, two hundred twenty thousand, four hundred twenty-one".