315110205221 has 16 divisors (see below), whose sum is σ = 369881707776. Its totient is φ = 262778535936.

The previous prime is 315110205211. The next prime is 315110205253. The reversal of 315110205221 is 122502011513.

It is not a de Polignac number, because 315110205221 - 2³⁴ = 297930336037 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (315110205211) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 6254885 + ... + 6305061.

It is an arithmetic number, because the mean of its divisors is an integer number (23117606736).

Almost surely, 2^315110205221 is an apocalyptic number.

It is an amenable number.

315110205221 is a deficient number, since it is larger than the sum of its proper divisors (54771502555).

315110205221 is a wasteful number, since it uses less digits than its factorization.

315110205221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 74468.

The product of its (nonzero) digits is 600, while the sum is 23.

Adding to 315110205221 its reverse (122502011513), we get a palindrome (437612216734).

The spelling of 315110205221 in words is "three hundred fifteen billion, one hundred ten million, two hundred five thousand, two hundred twenty-one".