22251115140 has 48 divisors (see below), whose sum is σ = 62310947328. Its totient is φ = 5932885504.

The previous prime is 22251115123. The next prime is 22251115169. The reversal of 22251115140 is 4151115222.

It is a happy number.

It is a super-2 number, since 2×22251115140² (a number of 21 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 22251115140.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 593389 + ... + 629771.

It is an arithmetic number, because the mean of its divisors is an integer number (1298144736).

Almost surely, 2^22251115140 is an apocalyptic number.

22251115140 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

22251115140 is an abundant number, since it is smaller than the sum of its proper divisors (40059832188).

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

22251115140 is a wasteful number, since it uses less digits than its factorization.

22251115140 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 46588 (or 46586 counting only the distinct ones).

The product of its (nonzero) digits is 800, while the sum is 24.

The spelling of 22251115140 in words is "twenty-two billion, two hundred fifty-one million, one hundred fifteen thousand, one hundred forty".