22020335144 has 32 divisors (see below), whose sum is σ = 44208066600. Its totient is φ = 10246072320.

The previous prime is 22020335137. The next prime is 22020335149. The reversal of 22020335144 is 44153302022.

It can be written as a sum of positive squares in 4 ways, for example, as 17249670244 + 4770664900 = 131338^2 + 69070^2 .

It is not an unprimeable number, because it can be changed into a prime (22020335149) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 897527 + ... + 921734.

Almost surely, 2^22020335144 is an apocalyptic number.

It is an amenable number.

22020335144 is an abundant number, since it is smaller than the sum of its proper divisors (22187731456).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

22020335144 is a wasteful number, since it uses less digits than its factorization.

22020335144 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1819373 (or 1819369 counting only the distinct ones).

The product of its (nonzero) digits is 5760, while the sum is 26.

Adding to 22020335144 its reverse (44153302022), we get a palindrome (66173637166).

The spelling of 22020335144 in words is "twenty-two billion, twenty million, three hundred thirty-five thousand, one hundred forty-four".