22231301440 has 28 divisors (see below), whose sum is σ = 52938287316. Its totient is φ = 8892520448.

The previous prime is 22231301419. The next prime is 22231301471. The reversal of 22231301440 is 4410313222.

It can be written as a sum of positive squares in 2 ways, for example, as 14350123264 + 7881178176 = 119792^2 + 88776^2 .

It is a super-2 number, since 2×22231301440² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 34736089 + ... + 34736728.

Almost surely, 2^22231301440 is an apocalyptic number.

22231301440 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

22231301440 is an abundant number, since it is smaller than the sum of its proper divisors (30706985876).

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

22231301440 is an equidigital number, since it uses as much as digits as its factorization.

22231301440 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 69472834 (or 69472824 counting only the distinct ones).

The product of its (nonzero) digits is 1152, while the sum is 22.

Adding to 22231301440 its reverse (4410313222), we get a palindrome (26641614662).

The spelling of 22231301440 in words is "twenty-two billion, two hundred thirty-one million, three hundred one thousand, four hundred forty".