3155221104431 has 32 divisors (see below), whose sum is σ = 3599331785280. Its totient is φ = 2739495628800.

The previous prime is 3155221104421. The next prime is 3155221104449. The reversal of 3155221104431 is 1344011225513.

It is a cyclic number.

It is not a de Polignac number, because 3155221104431 - 2⁶ = 3155221104367 is a prime.

It is a super-2 number, since 2×3155221104431² (a number of 26 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3155221104421) 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, 61767641 + ... + 61818701.

It is an arithmetic number, because the mean of its divisors is an integer number (112479118290).

Almost surely, 2^{3155221104431} is an apocalyptic number.

3155221104431 is a deficient number, since it is larger than the sum of its proper divisors (444110680849).

3155221104431 is a wasteful number, since it uses less digits than its factorization.

3155221104431 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 53195.

The product of its (nonzero) digits is 14400, while the sum is 32.

Adding to 3155221104431 its reverse (1344011225513), we get a palindrome (4499232329944).

The spelling of 3155221104431 in words is "three trillion, one hundred fifty-five billion, two hundred twenty-one million, one hundred four thousand, four hundred thirty-one".