13521894122 has 32 divisors (see below), whose sum is σ = 23832990720. Its totient is φ = 5687403120.

The previous prime is 13521894107. The next prime is 13521894149. The reversal of 13521894122 is 22149812531.

It is a Harshad number since it is a multiple of its sum of digits (38).

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, 358178 + ... + 394125.

It is an arithmetic number, because the mean of its divisors is an integer number (744780960).

Almost surely, 2^13521894122 is an apocalyptic number.

13521894122 is a deficient number, since it is larger than the sum of its proper divisors (10311096598).

13521894122 is a wasteful number, since it uses less digits than its factorization.

13521894122 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 752378.

The product of its digits is 34560, while the sum is 38.

The spelling of 13521894122 in words is "thirteen billion, five hundred twenty-one million, eight hundred ninety-four thousand, one hundred twenty-two".