22422131240 has 64 divisors (see below), whose sum is σ = 51533087760. Its totient is φ = 8777134080.

The previous prime is 22422131227. The next prime is 22422131299. The reversal of 22422131240 is 4213122422.

It can be written as a sum of positive squares in 8 ways, for example, as 8189164036 + 14232967204 = 90494^2 + 119302^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 828320 + ... + 854960.

Almost surely, 2^22422131240 is an apocalyptic number.

22422131240 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 22422131240, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (25766543880).

22422131240 is an abundant number, since it is smaller than the sum of its proper divisors (29110956520).

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

22422131240 is a wasteful number, since it uses less digits than its factorization.

22422131240 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 27102 (or 27098 counting only the distinct ones).

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

Adding to 22422131240 its reverse (4213122422), we get a palindrome (26635253662).

The spelling of 22422131240 in words is "twenty-two billion, four hundred twenty-two million, one hundred thirty-one thousand, two hundred forty".