3220401145 has 16 divisors (see below), whose sum is σ = 4173120000. Its totient is φ = 2371644864.

The previous prime is 3220401139. The next prime is 3220401157. The reversal of 3220401145 is 5411040223.

It is a cyclic number.

It is not a de Polignac number, because 3220401145 - 2²⁹ = 2683530233 is a prime.

It is a super-2 number, since 2×3220401145² = 20741967069434622050, which contains 22 as substring.

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, 43645 + ... + 91354.

It is an arithmetic number, because the mean of its divisors is an integer number (260820000).

Almost surely, 2^3220401145 is an apocalyptic number.

It is an amenable number.

3220401145 is a deficient number, since it is larger than the sum of its proper divisors (952718855).

3220401145 is a wasteful number, since it uses less digits than its factorization.

3220401145 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 135384.

The product of its (nonzero) digits is 960, while the sum is 22.

The square root of 3220401145 is about 56748.5783522372. The cubic root of 3220401145 is about 1476.7375704316.

Adding to 3220401145 its reverse (5411040223), we get a palindrome (8631441368).

The spelling of 3220401145 in words is "three billion, two hundred twenty million, four hundred one thousand, one hundred forty-five".