3222221553 has 56 divisors (see below), whose sum is σ = 5038572608. Its totient is φ = 2057739552.

The previous prime is 3222221537. The next prime is 3222221567. The reversal of 3222221553 is 3551222223.

It is not a de Polignac number, because 3222221553 - 2⁴ = 3222221537 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (3222221503) by changing a digit.

It is a polite number, since it can be written in 55 ways as a sum of consecutive naturals, for example, 1806300 + ... + 1808082.

Almost surely, 2^3222221553 is an apocalyptic number.

It is an amenable number.

3222221553 is a deficient number, since it is larger than the sum of its proper divisors (1816351055).

3222221553 is an equidigital number, since it uses as much as digits as its factorization.

3222221553 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1905 (or 1890 counting only the distinct ones).

The product of its digits is 7200, while the sum is 27.

The square root of 3222221553 is about 56764.6153250421. The cubic root of 3222221553 is about 1477.0157716442.

Adding to 3222221553 its reverse (3551222223), we get a palindrome (6773443776).

The spelling of 3222221553 in words is "three billion, two hundred twenty-two million, two hundred twenty-one thousand, five hundred fifty-three".