3221002140 has 48 divisors (see below), whose sum is σ = 9078558720. Its totient is φ = 853243200.

The previous prime is 3221002091. The next prime is 3221002157. The reversal of 3221002140 is 412001223.

It is a Harshad number since it is a multiple of its sum of digits (15).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 168700 + ... + 186819.

It is an arithmetic number, because the mean of its divisors is an integer number (189136640).

Almost surely, 2^3221002140 is an apocalyptic number.

3221002140 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is an amenable number.

3221002140 is an abundant number, since it is smaller than the sum of its proper divisors (5857556580).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

3221002140 is a wasteful number, since it uses less digits than its factorization.

3221002140 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 355682 (or 355680 counting only the distinct ones).

The product of its (nonzero) digits is 96, while the sum is 15.

The square root of 3221002140 is about 56753.8733479927. The cubic root of 3221002140 is about 1476.8294282109.

Adding to 3221002140 its reverse (412001223), we get a palindrome (3633003363).

The spelling of 3221002140 in words is "three billion, two hundred twenty-one million, two thousand, one hundred forty".