15221201105 has 16 divisors (see below), whose sum is σ = 19964073024. Its totient is φ = 11048777280.

The previous prime is 15221201063. The next prime is 15221201113. The reversal of 15221201105 is 50110212251.

It is not a de Polignac number, because 15221201105 - 2⁶ = 15221201041 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 235814 + ... + 293343.

It is an arithmetic number, because the mean of its divisors is an integer number (1247754564).

Almost surely, 2^15221201105 is an apocalyptic number.

It is an amenable number.

15221201105 is a deficient number, since it is larger than the sum of its proper divisors (4742871919).

15221201105 is a wasteful number, since it uses less digits than its factorization.

15221201105 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 529696.

The product of its (nonzero) digits is 200, while the sum is 20.

Adding to 15221201105 its reverse (50110212251), we get a palindrome (65331413356).

The spelling of 15221201105 in words is "fifteen billion, two hundred twenty-one million, two hundred one thousand, one hundred five".