3331221715 has 16 divisors (see below), whose sum is σ = 4196367360. Its totient is φ = 2535291360.

The previous prime is 3331221713. The next prime is 3331221731. The reversal of 3331221715 is 5171221333.

3331221715 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 3331221715 - 2¹ = 3331221713 is a prime.

It is a super-2 number, since 2×3331221715² = 22194076228975082450, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (3331221713) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 172989 + ... + 191278.

It is an arithmetic number, because the mean of its divisors is an integer number (262272960).

It is a self-describing number.

Almost surely, 2^3331221715 is an apocalyptic number.

3331221715 is a deficient number, since it is larger than the sum of its proper divisors (865145645).

3331221715 is a wasteful number, since it uses less digits than its factorization.

3331221715 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 364362.

The product of its digits is 3780, while the sum is 28.

The square root of 3331221715 is about 57716.7368706860. The cubic root of 3331221715 is about 1493.4860816739.

The spelling of 3331221715 in words is "three billion, three hundred thirty-one million, two hundred twenty-one thousand, seven hundred fifteen".