112151615221 has 4 divisors (see below), whose sum is σ = 113571256000. Its totient is φ = 110731974444.

The previous prime is 112151615207. The next prime is 112151615227. The reversal of 112151615221 is 122516151211.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 122516151211 = 184517 ⋅663983.

It is a cyclic number.

It is not a de Polignac number, because 112151615221 - 2³⁵ = 77791876853 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 112151615221.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (112151615227) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 709820271 + ... + 709820428.

It is an arithmetic number, because the mean of its divisors is an integer number (28392814000).

Almost surely, 2^112151615221 is an apocalyptic number.

It is an amenable number.

112151615221 is a deficient number, since it is larger than the sum of its proper divisors (1419640779).

112151615221 is an equidigital number, since it uses as much as digits as its factorization.

112151615221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1419640778.

The product of its digits is 1200, while the sum is 28.

Adding to 112151615221 its reverse (122516151211), we get a palindrome (234667766432).

The spelling of 112151615221 in words is "one hundred twelve billion, one hundred fifty-one million, six hundred fifteen thousand, two hundred twenty-one".