22444220224520 has 64 divisors (see below), whose sum is σ = 52121918318400. Its totient is φ = 8693799586560.

The previous prime is 22444220224519. The next prime is 22444220224553. The reversal of 22444220224520 is 2542202244422.

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, 70813991 + ... + 71130230.

It is an arithmetic number, because the mean of its divisors is an integer number (814404973725).

Almost surely, 2^{22444220224520} is an apocalyptic number.

22444220224520 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

22444220224520 is an abundant number, since it is smaller than the sum of its proper divisors (29677698093880).

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

22444220224520 is a wasteful number, since it uses less digits than its factorization.

22444220224520 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 141944358 (or 141944354 counting only the distinct ones).

The product of its (nonzero) digits is 163840, while the sum is 35.

Adding to 22444220224520 its reverse (2542202244422), we get a palindrome (24986422468942).

The spelling of 22444220224520 in words is "twenty-two trillion, four hundred forty-four billion, two hundred twenty million, two hundred twenty-four thousand, five hundred twenty".