15421106224 has 40 divisors (see below), whose sum is σ = 30000021840. Its totient is φ = 7679232000.

The previous prime is 15421106213. The next prime is 15421106279. The reversal of 15421106224 is 42260112451.

It is a junction number, because it is equal to n+sod(n) for n = 15421106192 and 15421106201.

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, 5189059 + ... + 5192029.

It is an arithmetic number, because the mean of its divisors is an integer number (750000546).

Almost surely, 2^15421106224 is an apocalyptic number.

It is an amenable number.

15421106224 is a deficient number, since it is larger than the sum of its proper divisors (14578915616).

15421106224 is a wasteful number, since it uses less digits than its factorization.

15421106224 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4189 (or 4183 counting only the distinct ones).

The product of its (nonzero) digits is 3840, while the sum is 28.

Adding to 15421106224 its reverse (42260112451), we get a palindrome (57681218675).

The spelling of 15421106224 in words is "fifteen billion, four hundred twenty-one million, one hundred six thousand, two hundred twenty-four".