3220611481 has 4 divisors (see below), whose sum is σ = 3244119732. Its totient is φ = 3197103232.

The previous prime is 3220611469. The next prime is 3220611487. The reversal of 3220611481 is 1841160223.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 1452829456 + 1767782025 = 38116^2 + 42045^2 .

It is a cyclic number.

It is not a de Polignac number, because 3220611481 - 2⁷ = 3220611353 is a prime.

It is a super-2 number, since 2×3220611481² = 20744676623098026722, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (3220611487) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 11753920 + ... + 11754193.

It is an arithmetic number, because the mean of its divisors is an integer number (811029933).

Almost surely, 2^3220611481 is an apocalyptic number.

It is an amenable number.

3220611481 is a deficient number, since it is larger than the sum of its proper divisors (23508251).

3220611481 is a wasteful number, since it uses less digits than its factorization.

3220611481 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23508250.

The product of its (nonzero) digits is 2304, while the sum is 28.

The square root of 3220611481 is about 56750.4315490200. The cubic root of 3220611481 is about 1476.7697200819.

The spelling of 3220611481 in words is "three billion, two hundred twenty million, six hundred eleven thousand, four hundred eighty-one".