15212222113 has 8 divisors (see below), whose sum is σ = 16597156896. Its totient is φ = 13827621600.

The previous prime is 15212222093. The next prime is 15212222117. The reversal of 15212222113 is 31122221251.

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 15212222113 - 2⁹ = 15212221601 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (15212222117) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 16845 + ... + 175237.

It is an arithmetic number, because the mean of its divisors is an integer number (2074644612).

Almost surely, 2^15212222113 is an apocalyptic number.

It is an amenable number.

15212222113 is a deficient number, since it is larger than the sum of its proper divisors (1384934783).

15212222113 is a wasteful number, since it uses less digits than its factorization.

15212222113 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 167135.

The product of its digits is 480, while the sum is 22.

Adding to 15212222113 its reverse (31122221251), we get a palindrome (46334443364).

The spelling of 15212222113 in words is "fifteen billion, two hundred twelve million, two hundred twenty-two thousand, one hundred thirteen".