22221240887400 has 96 divisors (see below), whose sum is σ = 68910873975360. Its totient is φ = 5923511357440.

The previous prime is 22221240887389. The next prime is 22221240887431. The reversal of 22221240887400 is 478804212222.

It is a happy number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 5074572 + ... + 8378171.

It is an arithmetic number, because the mean of its divisors is an integer number (717821603910).

Almost surely, 2^{22221240887400} is an apocalyptic number.

22221240887400 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

22221240887400 is an abundant number, since it is smaller than the sum of its proper divisors (46689633087960).

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

22221240887400 is a wasteful number, since it uses less digits than its factorization.

22221240887400 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13455515 (or 13455506 counting only the distinct ones).

The product of its (nonzero) digits is 229376, while the sum is 42.

The spelling of 22221240887400 in words is "twenty-two trillion, two hundred twenty-one billion, two hundred forty million, eight hundred eighty-seven thousand, four hundred".