22221240340244 has 48 divisors (see below), whose sum is σ = 46095612057600. Its totient is φ = 9260279186400.

The previous prime is 22221240340231. The next prime is 22221240340253. The reversal of 22221240340244 is 44204304212222.

It is a self number, because there is not a number n which added to its sum of digits gives 22221240340244.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 428690714 + ... + 428742545.

It is an arithmetic number, because the mean of its divisors is an integer number (960325251200).

Almost surely, 2^{22221240340244} is an apocalyptic number.

It is an amenable number.

22221240340244 is an abundant number, since it is smaller than the sum of its proper divisors (23874371717356).

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

22221240340244 is a wasteful number, since it uses less digits than its factorization.

22221240340244 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 857433324 (or 857433322 counting only the distinct ones).

The product of its (nonzero) digits is 49152, while the sum is 32.

Adding to 22221240340244 its reverse (44204304212222), we get a palindrome (66425544552466).

The spelling of 22221240340244 in words is "twenty-two trillion, two hundred twenty-one billion, two hundred forty million, three hundred forty thousand, two hundred forty-four".