3155045323221 has 12 divisors (see below), whose sum is σ = 4971586570080. Its totient is φ = 1912148680680.

The previous prime is 3155045323217. The next prime is 3155045323229. The reversal of 3155045323221 is 1223235405513.

3155045323221 is a `hidden beast` number, since 3 + 1 + 550 + 4 + 53 + 2 + 32 + 21 = 666.

It is not a de Polignac number, because 3155045323221 - 2² = 3155045323217 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3155045323229) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 15934572241 + ... + 15934572438.

It is an arithmetic number, because the mean of its divisors is an integer number (414298880840).

Almost surely, 2^{3155045323221} is an apocalyptic number.

It is an amenable number.

3155045323221 is a deficient number, since it is larger than the sum of its proper divisors (1816541246859).

3155045323221 is a wasteful number, since it uses less digits than its factorization.

3155045323221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 31869144696 (or 31869144693 counting only the distinct ones).

The product of its (nonzero) digits is 108000, while the sum is 36.

The spelling of 3155045323221 in words is "three trillion, one hundred fifty-five billion, forty-five million, three hundred twenty-three thousand, two hundred twenty-one".