22001022044 has 12 divisors (see below), whose sum is σ = 39320975904. Its totient is φ = 10766457504.

The previous prime is 22001022041. The next prime is 22001022053. The reversal of 22001022044 is 44022010022.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22001022041) 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, 58513169 + ... + 58513544.

It is an arithmetic number, because the mean of its divisors is an integer number (3276747992).

Almost surely, 2^22001022044 is an apocalyptic number.

It is an amenable number.

22001022044 is a deficient number, since it is larger than the sum of its proper divisors (17319953860).

22001022044 is a wasteful number, since it uses less digits than its factorization.

22001022044 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 117026764 (or 117026762 counting only the distinct ones).

The product of its (nonzero) digits is 256, while the sum is 17.

Adding to 22001022044 its reverse (44022010022), we get a palindrome (66023032066).

The spelling of 22001022044 in words is "twenty-two billion, one million, twenty-two thousand, forty-four".