13512221623422 has 12 divisors (see below), whose sum is σ = 29276480184120. Its totient is φ = 4504073874468.

The previous prime is 13512221623361. The next prime is 13512221623423. The reversal of 13512221623422 is 22432612221531.

13512221623422 is a `hidden beast` number, since 1 + 3 + 5 + 1 + 2 + 2 + 2 + 1 + 623 + 4 + 22 = 666.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13512221623423) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 375339489522 + ... + 375339489557.

It is an arithmetic number, because the mean of its divisors is an integer number (2439706682010).

Almost surely, 2^{13512221623422} is an apocalyptic number.

13512221623422 is an abundant number, since it is smaller than the sum of its proper divisors (15764258560698).

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

13512221623422 is a wasteful number, since it uses less digits than its factorization.

13512221623422 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 750678979087 (or 750678979084 counting only the distinct ones).

The product of its digits is 69120, while the sum is 36.

Adding to 13512221623422 its reverse (22432612221531), we get a palindrome (35944833844953).

The spelling of 13512221623422 in words is "thirteen trillion, five hundred twelve billion, two hundred twenty-one million, six hundred twenty-three thousand, four hundred twenty-two".