13621144422 has 24 divisors (see below), whose sum is σ = 28751561496. Its totient is φ = 4301413344.

The previous prime is 13621144417. The next prime is 13621144423. The reversal of 13621144422 is 22444112631.

It is a self number, because there is not a number n which added to its sum of digits gives 13621144422.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13621144423) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 3142143 + ... + 3146474.

It is an arithmetic number, because the mean of its divisors is an integer number (1197981729).

Almost surely, 2^13621144422 is an apocalyptic number.

13621144422 is an abundant number, since it is smaller than the sum of its proper divisors (15130417074).

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

13621144422 is a wasteful number, since it uses less digits than its factorization.

13621144422 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6288660 (or 6288641 counting only the distinct ones).

The product of its digits is 9216, while the sum is 30.

The spelling of 13621144422 in words is "thirteen billion, six hundred twenty-one million, one hundred forty-four thousand, four hundred twenty-two".