22140021044 has 12 divisors (see below), whose sum is σ = 38749345824. Its totient is φ = 11068779384.

The previous prime is 22140021023. The next prime is 22140021067. The reversal of 22140021044 is 44012004122.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 266714 + ... + 339729.

It is an arithmetic number, because the mean of its divisors is an integer number (3229112152).

Almost surely, 2^22140021044 is an apocalyptic number.

It is an amenable number.

22140021044 is a deficient number, since it is larger than the sum of its proper divisors (16609324780).

22140021044 is a wasteful number, since it uses less digits than its factorization.

22140021044 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 615574 (or 615572 counting only the distinct ones).

The product of its (nonzero) digits is 512, while the sum is 20.

Adding to 22140021044 its reverse (44012004122), we get a palindrome (66152025166).

The spelling of 22140021044 in words is "twenty-two billion, one hundred forty million, twenty-one thousand, forty-four".