22012131221144 has 16 divisors (see below), whose sum is σ = 43067213259120. Its totient is φ = 10527541018720.

The previous prime is 22012131220997. The next prime is 22012131221189. The reversal of 22012131221144 is 44112213121022.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 59815573787 + ... + 59815574154.

It is an arithmetic number, because the mean of its divisors is an integer number (2691700828695).

Almost surely, 2^{22012131221144} is an apocalyptic number.

It is an amenable number.

22012131221144 is a deficient number, since it is larger than the sum of its proper divisors (21055082037976).

22012131221144 is a wasteful number, since it uses less digits than its factorization.

22012131221144 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 119631147970 (or 119631147966 counting only the distinct ones).

The product of its (nonzero) digits is 1536, while the sum is 26.

Adding to 22012131221144 its reverse (44112213121022), we get a palindrome (66124344342166).

The spelling of 22012131221144 in words is "twenty-two trillion, twelve billion, one hundred thirty-one million, two hundred twenty-one thousand, one hundred forty-four".