3103601521221 has 12 divisors (see below), whose sum is σ = 4482996704160. Its totient is φ = 2069059959720.

The previous prime is 3103601521183. The next prime is 3103601521247. The reversal of 3103601521221 is 1221251063013.

3103601521221 is a `hidden beast` number, since 3 + 1 + 0 + 3 + 601 + 52 + 1 + 2 + 2 + 1 = 666.

It is not a de Polignac number, because 3103601521221 - 2¹³ = 3103601513029 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3103601521261) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 2970936 + ... + 3877326.

It is an arithmetic number, because the mean of its divisors is an integer number (373583058680).

Almost surely, 2^{3103601521221} is an apocalyptic number.

It is an amenable number.

3103601521221 is a deficient number, since it is larger than the sum of its proper divisors (1379395182939).

3103601521221 is a wasteful number, since it uses less digits than its factorization.

3103601521221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1286856 (or 1286853 counting only the distinct ones).

The product of its (nonzero) digits is 2160, while the sum is 27.

Adding to 3103601521221 its reverse (1221251063013), we get a palindrome (4324852584234).

The spelling of 3103601521221 in words is "three trillion, one hundred three billion, six hundred one million, five hundred twenty-one thousand, two hundred twenty-one".