22466221311340 has 24 divisors (see below), whose sum is σ = 47280963401280. Its totient is φ = 8967079258368.

The previous prime is 22466221311319. The next prime is 22466221311341. The reversal of 22466221311340 is 4311312266422.

It is a super-2 number, since 2×22466221311340² (a number of 28 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 22466221311340.

It is not an unprimeable number, because it can be changed into a prime (22466221311341) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1213069645 + ... + 1213088164.

It is an arithmetic number, because the mean of its divisors is an integer number (1970040141720).

Almost surely, 2^{22466221311340} is an apocalyptic number.

22466221311340 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

22466221311340 is an abundant number, since it is smaller than the sum of its proper divisors (24814742089940).

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

22466221311340 is a wasteful number, since it uses less digits than its factorization.

22466221311340 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2426158281 (or 2426158279 counting only the distinct ones).

The product of its (nonzero) digits is 82944, while the sum is 37.

Adding to 22466221311340 its reverse (4311312266422), we get a palindrome (26777533577762).

The spelling of 22466221311340 in words is "twenty-two trillion, four hundred sixty-six billion, two hundred twenty-one million, three hundred eleven thousand, three hundred forty".