22222135551444 has 24 divisors (see below), whose sum is σ = 51856043785728. Its totient is φ = 7406750779200.

The previous prime is 22222135551437. The next prime is 22222135551481. The reversal of 22222135551444 is 44415553122222.

It is a junction number, because it is equal to n+sod(n) for n = 22222135551396 and 22222135551405.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 78319732 + ... + 78602955.

It is an arithmetic number, because the mean of its divisors is an integer number (2160668491072).

Almost surely, 2^{22222135551444} is an apocalyptic number.

It is an amenable number.

22222135551444 is an abundant number, since it is smaller than the sum of its proper divisors (29633908234284).

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

22222135551444 is a wasteful number, since it uses less digits than its factorization.

22222135551444 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 156934495 (or 156934493 counting only the distinct ones).

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

Adding to 22222135551444 its reverse (44415553122222), we get a palindrome (66637688673666).

The spelling of 22222135551444 in words is "twenty-two trillion, two hundred twenty-two billion, one hundred thirty-five million, five hundred fifty-one thousand, four hundred forty-four".