15220122065 has 8 divisors (see below), whose sum is σ = 18293751720. Its totient is φ = 12156360832.

The previous prime is 15220122031. The next prime is 15220122077. The reversal of 15220122065 is 56022102251.

It can be written as a sum of positive squares in 4 ways, for example, as 735277456 + 14484844609 = 27116^2 + 120353^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 15220122065 - 2⁸ = 15220121809 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2463710 + ... + 2469879.

It is an arithmetic number, because the mean of its divisors is an integer number (2286718965).

Almost surely, 2^15220122065 is an apocalyptic number.

It is an amenable number.

15220122065 is a deficient number, since it is larger than the sum of its proper divisors (3073629655).

15220122065 is an equidigital number, since it uses as much as digits as its factorization.

15220122065 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4934211.

The product of its (nonzero) digits is 2400, while the sum is 26.

The spelling of 15220122065 in words is "fifteen billion, two hundred twenty million, one hundred twenty-two thousand, sixty-five".