22042015144 has 8 divisors (see below), whose sum is σ = 41328778410. Its totient is φ = 11021007568.

The previous prime is 22042015139. The next prime is 22042015183. The reversal of 22042015144 is 44151024022.

It can be written as a sum of positive squares in only one way, i.e., 15459938244 + 6582076900 = 124338^2 + 81130^2 .

It is a tau number, because it is divible by the number of its divisors (8).

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 as a sum of consecutive naturals, namely, 1377625939 + ... + 1377625954.

Almost surely, 2^22042015144 is an apocalyptic number.

It is an amenable number.

22042015144 is a deficient number, since it is larger than the sum of its proper divisors (19286763266).

22042015144 is a wasteful number, since it uses less digits than its factorization.

22042015144 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2755251899 (or 2755251895 counting only the distinct ones).

The product of its (nonzero) digits is 2560, while the sum is 25.

Adding to 22042015144 its reverse (44151024022), we get a palindrome (66193039166).

The spelling of 22042015144 in words is "twenty-two billion, forty-two million, fifteen thousand, one hundred forty-four".