22020311444 has 12 divisors (see below), whose sum is σ = 38536583904. Its totient is φ = 11009858904.

The previous prime is 22020311363. The next prime is 22020311449. The reversal of 22020311444 is 44411302022.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22020311449) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 254579 + ... + 329925.

It is an arithmetic number, because the mean of its divisors is an integer number (3211381992).

Almost surely, 2^22020311444 is an apocalyptic number.

It is an amenable number.

22020311444 is a deficient number, since it is larger than the sum of its proper divisors (16516272460).

22020311444 is a wasteful number, since it uses less digits than its factorization.

22020311444 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 148414 (or 148412 counting only the distinct ones).

The product of its (nonzero) digits is 1536, while the sum is 23.

Adding to 22020311444 its reverse (44411302022), we get a palindrome (66431613466).

The spelling of 22020311444 in words is "twenty-two billion, twenty million, three hundred eleven thousand, four hundred forty-four".