3332121221 has 16 divisors (see below), whose sum is σ = 3919466880. Its totient is φ = 2792752320.

The previous prime is 3332121203. The next prime is 3332121223. The reversal of 3332121221 is 1221212333.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-3332121221 is a prime.

It is a super-2 number, since 2×3332121221² = 22206063662877061682, 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 = 3332121193 and 3332121202.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3332121223) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 106091 + ... + 133863.

It is an arithmetic number, because the mean of its divisors is an integer number (244966680).

Almost surely, 2^3332121221 is an apocalyptic number.

It is an amenable number.

3332121221 is a deficient number, since it is larger than the sum of its proper divisors (587345659).

3332121221 is a wasteful number, since it uses less digits than its factorization.

3332121221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28636.

The product of its digits is 432, while the sum is 20.

The square root of 3332121221 is about 57724.5287637760. The cubic root of 3332121221 is about 1493.6204947020.

Adding to 3332121221 its reverse (1221212333), we get a palindrome (4553333554).

It can be divided in two parts, 333212 and 1221, that added together give a palindrome (334433).

The spelling of 3332121221 in words is "three billion, three hundred thirty-two million, one hundred twenty-one thousand, two hundred twenty-one".