142522513312221 has 24 divisors (see below), whose sum is σ = 235333801235520. Its totient is φ = 81421171929216.

The previous prime is 142522513312219. The next prime is 142522513312229. The reversal of 142522513312221 is 122213315225241.

142522513312221 is a `hidden beast` number, since 1 + 4 + 2 + 52 + 2 + 51 + 331 + 2 + 221 = 666.

It is not a de Polignac number, because 142522513312221 - 2¹ = 142522513312219 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (142522513312229) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 281192700 + ... + 281699093.

It is an arithmetic number, because the mean of its divisors is an integer number (9805575051480).

Almost surely, 2^{142522513312221} is an apocalyptic number.

It is an amenable number.

142522513312221 is a deficient number, since it is larger than the sum of its proper divisors (92811287923299).

142522513312221 is a wasteful number, since it uses less digits than its factorization.

142522513312221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 562895825 (or 562895822 counting only the distinct ones).

The product of its digits is 57600, while the sum is 36.

Adding to 142522513312221 its reverse (122213315225241), we get a palindrome (264735828537462).

The spelling of 142522513312221 in words is "one hundred forty-two trillion, five hundred twenty-two billion, five hundred thirteen million, three hundred twelve thousand, two hundred twenty-one".