22220440352 has 24 divisors (see below), whose sum is σ = 47723446512. Its totient is φ = 10100200000.

The previous prime is 22220440339. The next prime is 22220440357. The reversal of 22220440352 is 25304402222.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (22220440357) 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, 31562774 + ... + 31563477.

It is an arithmetic number, because the mean of its divisors is an integer number (1988476938).

Almost surely, 2^22220440352 is an apocalyptic number.

22220440352 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

It is an amenable number.

22220440352 is an abundant number, since it is smaller than the sum of its proper divisors (25503006160).

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

22220440352 is a wasteful number, since it uses less digits than its factorization.

22220440352 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 63126272 (or 63126264 counting only the distinct ones).

The product of its (nonzero) digits is 7680, while the sum is 26.

Adding to 22220440352 its reverse (25304402222), we get a palindrome (47524842574).

The spelling of 22220440352 in words is "twenty-two billion, two hundred twenty million, four hundred forty thousand, three hundred fifty-two".