22443112121144 has 96 divisors (see below), whose sum is σ = 51977898473760. Its totient is φ = 9007268962560.

The previous prime is 22443112121041. The next prime is 22443112121267. The reversal of 22443112121144 is 44112121134422.

It is a happy number.

It is a super-3 number, since 3×22443112121144³ (a number of 41 digits) contains 333 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 22443112121144.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 38481527 + ... + 39060390.

It is an arithmetic number, because the mean of its divisors is an integer number (541436442435).

Almost surely, 2^{22443112121144} is an apocalyptic number.

It is an amenable number.

22443112121144 is an abundant number, since it is smaller than the sum of its proper divisors (29534786352616).

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

22443112121144 is a wasteful number, since it uses less digits than its factorization.

22443112121144 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 77541981 (or 77541966 counting only the distinct ones).

The product of its digits is 12288, while the sum is 32.

Adding to 22443112121144 its reverse (44112121134422), we get a palindrome (66555233255566).

The spelling of 22443112121144 in words is "twenty-two trillion, four hundred forty-three billion, one hundred twelve million, one hundred twenty-one thousand, one hundred forty-four".