15222152681 has 4 divisors (see below), whose sum is σ = 15229956864. Its totient is φ = 15214348500.

The previous prime is 15222152639. The next prime is 15222152713. The reversal of 15222152681 is 18625122251.

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.

It is a cyclic number.

It is not a de Polignac number, because 15222152681 - 2¹⁰ = 15222151657 is a prime.

It is a super-2 number, since 2×15222152681² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (15222152581) 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, 3899165 + ... + 3903066.

It is an arithmetic number, because the mean of its divisors is an integer number (3807489216).

Almost surely, 2^15222152681 is an apocalyptic number.

It is an amenable number.

15222152681 is a deficient number, since it is larger than the sum of its proper divisors (7804183).

15222152681 is an equidigital number, since it uses as much as digits as its factorization.

15222152681 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7804182.

The product of its digits is 19200, while the sum is 35.

The spelling of 15222152681 in words is "fifteen billion, two hundred twenty-two million, one hundred fifty-two thousand, six hundred eighty-one".