15221184632142 has 64 divisors (see below), whose sum is σ = 31444924896000. Its totient is φ = 4908807025920.

The previous prime is 15221184632077. The next prime is 15221184632161. The reversal of 15221184632142 is 24123648112251.

It is a junction number, because it is equal to n+sod(n) for n = 15221184632094 and 15221184632103.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 22353393 + ... + 23024259.

It is an arithmetic number, because the mean of its divisors is an integer number (491326951500).

Almost surely, 2^{15221184632142} is an apocalyptic number.

15221184632142 is an abundant number, since it is smaller than the sum of its proper divisors (16223740263858).

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

15221184632142 is a wasteful number, since it uses less digits than its factorization.

15221184632142 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 671681.

The product of its digits is 184320, while the sum is 42.

The spelling of 15221184632142 in words is "fifteen trillion, two hundred twenty-one billion, one hundred eighty-four million, six hundred thirty-two thousand, one hundred forty-two".