22036220244 has 72 divisors (see below), whose sum is σ = 56095162760. Its totient is φ = 7293825792.

The previous prime is 22036220243. The next prime is 22036220257. The reversal of 22036220244 is 44202263022.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 17427168144 + 4609052100 = 132012^2 + 67890^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22036220243) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 3269502 + ... + 3276234.

Almost surely, 2^22036220244 is an apocalyptic number.

It is an amenable number.

22036220244 is an abundant number, since it is smaller than the sum of its proper divisors (34058942516).

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

22036220244 is a wasteful number, since it uses less digits than its factorization.

22036220244 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7369 (or 7364 counting only the distinct ones).

The product of its (nonzero) digits is 9216, while the sum is 27.

Adding to 22036220244 its reverse (44202263022), we get a palindrome (66238483266).

The spelling of 22036220244 in words is "twenty-two billion, thirty-six million, two hundred twenty thousand, two hundred forty-four".