3320012221 has 4 divisors (see below), whose sum is σ = 3329525500. Its totient is φ = 3310498944.

The previous prime is 3320012197. The next prime is 3320012251. The reversal of 3320012221 is 1222100233.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 2312648100 + 1007364121 = 48090^2 + 31739^2 .

It is a cyclic number.

It is not a de Polignac number, because 3320012221 - 2¹⁹ = 3319487933 is a prime.

It is a super-2 number, since 2×3320012221² = 22044962295178705682, 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 = 3320012195 and 3320012204.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3320012251) 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, 4756116 + ... + 4756813.

It is an arithmetic number, because the mean of its divisors is an integer number (832381375).

Almost surely, 2^3320012221 is an apocalyptic number.

It is an amenable number.

3320012221 is a deficient number, since it is larger than the sum of its proper divisors (9513279).

3320012221 is an equidigital number, since it uses as much as digits as its factorization.

3320012221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9513278.

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

The square root of 3320012221 is about 57619.5472127298. The cubic root of 3320012221 is about 1491.8090156355.

Adding to 3320012221 its reverse (1222100233), we get a palindrome (4542112454).

It can be divided in two parts, 3320012 and 221, that added together give a palindrome (3320233).

The spelling of 3320012221 in words is "three billion, three hundred twenty million, twelve thousand, two hundred twenty-one".