22102631440 has 20 divisors (see below), whose sum is σ = 51388618284. Its totient is φ = 8841052544.

The previous prime is 22102631423. The next prime is 22102631459. The reversal of 22102631440 is 4413620122.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 14352998416 + 7749633024 = 119804^2 + 88032^2 .

It is a tau number, because it is divible by the number of its divisors (20).

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, 138141367 + ... + 138141526.

Almost surely, 2^22102631440 is an apocalyptic number.

22102631440 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

22102631440 is an abundant number, since it is smaller than the sum of its proper divisors (29285986844).

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

22102631440 is a wasteful number, since it uses less digits than its factorization.

22102631440 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 276282906 (or 276282900 counting only the distinct ones).

The product of its (nonzero) digits is 2304, while the sum is 25.

The spelling of 22102631440 in words is "twenty-two billion, one hundred two million, six hundred thirty-one thousand, four hundred forty".