332012221 has 4 divisors (see below), whose sum is σ = 332126944. Its totient is φ = 331897500.

The previous prime is 332012189. The next prime is 332012257. The reversal of 332012221 is 122210233.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 332012221 - 2⁵ = 332012189 is a prime.

It is a super-2 number, since 2×332012221² = 220464229786705682, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 332012195 and 332012204.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (332012281) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 52905 + ... + 58846.

It is an arithmetic number, because the mean of its divisors is an integer number (83031736).

Almost surely, 2^332012221 is an apocalyptic number.

It is an amenable number.

332012221 is a deficient number, since it is larger than the sum of its proper divisors (114723).

332012221 is a wasteful number, since it uses less digits than its factorization.

332012221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 114722.

The product of its (nonzero) digits is 144, while the sum is 16.

The square root of 332012221 is about 18221.2025124578. The cubic root of 332012221 is about 692.4440533984. Note that the first 3 decimals are identical.

Adding to 332012221 its reverse (122210233), we get a palindrome (454222454).

It can be divided in two parts, 332012 and 221, that added together give a palindrome (332233).

The spelling of 332012221 in words is "three hundred thirty-two million, twelve thousand, two hundred twenty-one".