22144231405554 has 16 divisors (see below), whose sum is σ = 44718447888192. Its totient is φ = 7309746289008.

The previous prime is 22144231405507. The next prime is 22144231405559. The reversal of 22144231405554 is 45550413244122.

It is not an unprimeable number, because it can be changed into a prime (22144231405559) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 17916044209 + ... + 17916045444.

It is an arithmetic number, because the mean of its divisors is an integer number (2794902993012).

Almost surely, 2^{22144231405554} is an apocalyptic number.

22144231405554 is an abundant number, since it is smaller than the sum of its proper divisors (22574216482638).

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

22144231405554 is a wasteful number, since it uses less digits than its factorization.

22144231405554 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 35832089761.

The product of its (nonzero) digits is 768000, while the sum is 42.

Adding to 22144231405554 its reverse (45550413244122), we get a palindrome (67694644649676).

The spelling of 22144231405554 in words is "twenty-two trillion, one hundred forty-four billion, two hundred thirty-one million, four hundred five thousand, five hundred fifty-four".