22221111005144 has 16 divisors (see below), whose sum is σ = 43008601945920. Its totient is φ = 10752150486240.

The previous prime is 22221111005101. The next prime is 22221111005207. The reversal of 22221111005144 is 44150011112222.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 44800626779 + ... + 44800627274.

It is an arithmetic number, because the mean of its divisors is an integer number (2688037621620).

Almost surely, 2^{22221111005144} is an apocalyptic number.

It is an amenable number.

22221111005144 is a deficient number, since it is larger than the sum of its proper divisors (20787490940776).

22221111005144 is a wasteful number, since it uses less digits than its factorization.

22221111005144 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 89601254090 (or 89601254086 counting only the distinct ones).

The product of its (nonzero) digits is 1280, while the sum is 26.

Adding to 22221111005144 its reverse (44150011112222), we get a palindrome (66371122117366).

The spelling of 22221111005144 in words is "twenty-two trillion, two hundred twenty-one billion, one hundred eleven million, five thousand, one hundred forty-four".