11517007220722 has 4 divisors (see below), whose sum is σ = 17275510831086. Its totient is φ = 5758503610360.

The previous prime is 11517007220659. The next prime is 11517007220723. The reversal of 11517007220722 is 22702270071511.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 11463174404361 + 53832816361 = 3385731^2 + 232019^2 .

It is not an unprimeable number, because it can be changed into a prime (11517007220723) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2879251805179 + ... + 2879251805182.

Almost surely, 2^{11517007220722} is an apocalyptic number.

11517007220722 is a deficient number, since it is larger than the sum of its proper divisors (5758503610364).

11517007220722 is an equidigital number, since it uses as much as digits as its factorization.

11517007220722 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5758503610363.

The product of its (nonzero) digits is 27440, while the sum is 37.

The spelling of 11517007220722 in words is "eleven trillion, five hundred seventeen billion, seven million, two hundred twenty thousand, seven hundred twenty-two".