22144122523412 has 6 divisors (see below), whose sum is σ = 38752214415978. Its totient is φ = 11072061261704.

The previous prime is 22144122523399. The next prime is 22144122523417. The reversal of 22144122523412 is 21432522144122.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 16864853475856 + 5279269047556 = 4106684^2 + 2297666^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22144122523417) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2768015315423 + ... + 2768015315430.

It is an arithmetic number, because the mean of its divisors is an integer number (6458702402663).

Almost surely, 2^{22144122523412} is an apocalyptic number.

It is an amenable number.

22144122523412 is a deficient number, since it is larger than the sum of its proper divisors (16608091892566).

22144122523412 is a wasteful number, since it uses less digits than its factorization.

22144122523412 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5536030630857 (or 5536030630855 counting only the distinct ones).

The product of its digits is 61440, while the sum is 35.

Adding to 22144122523412 its reverse (21432522144122), we get a palindrome (43576644667534).

The spelling of 22144122523412 in words is "twenty-two trillion, one hundred forty-four billion, one hundred twenty-two million, five hundred twenty-three thousand, four hundred twelve".