15222103044 has 12 divisors (see below), whose sum is σ = 35518240464. Its totient is φ = 5074034344.

The previous prime is 15222103037. The next prime is 15222103049. The reversal of 15222103044 is 44030122251.

It is a tau number, because it is divible by the number of its divisors (12).

It is not an unprimeable number, because it can be changed into a prime (15222103049) 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, 634254282 + ... + 634254305.

It is an arithmetic number, because the mean of its divisors is an integer number (2959853372).

Almost surely, 2^15222103044 is an apocalyptic number.

It is an amenable number.

15222103044 is an abundant number, since it is smaller than the sum of its proper divisors (20296137420).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

15222103044 is a wasteful number, since it uses less digits than its factorization.

15222103044 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1268508594 (or 1268508592 counting only the distinct ones).

The product of its (nonzero) digits is 1920, while the sum is 24.

Adding to 15222103044 its reverse (44030122251), we get a palindrome (59252225295).

The spelling of 15222103044 in words is "fifteen billion, two hundred twenty-two million, one hundred three thousand, forty-four".