3036661221 has 32 divisors (see below), whose sum is σ = 4476332160. Its totient is φ = 1815756800.

The previous prime is 3036661207. The next prime is 3036661223. The reversal of 3036661221 is 1221666303.

It is not a de Polignac number, because 3036661221 - 2⁷ = 3036661093 is a prime.

It is a super-2 number, since 2×3036661221² = 18442622742250421682, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3036661223) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1881811 + ... + 1883423.

It is an arithmetic number, because the mean of its divisors is an integer number (139885380).

Almost surely, 2^3036661221 is an apocalyptic number.

It is an amenable number.

3036661221 is a deficient number, since it is larger than the sum of its proper divisors (1439670939).

3036661221 is a wasteful number, since it uses less digits than its factorization.

3036661221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2357.

The product of its (nonzero) digits is 7776, while the sum is 30.

The square root of 3036661221 is about 55105.9091296024. The cubic root of 3036661221 is about 1448.1007589208.

The spelling of 3036661221 in words is "three billion, thirty-six million, six hundred sixty-one thousand, two hundred twenty-one".