22121241420340 has 48 divisors (see below), whose sum is σ = 47326789641600. Its totient is φ = 8682905055872.

The previous prime is 22121241420329. The next prime is 22121241420361. The reversal of 22121241420340 is 4302414212122.

It is a junction number, because it is equal to n+sod(n) for n = 22121241420299 and 22121241420308.

It is a congruent number.

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, 16171120 + ... + 17485639.

It is an arithmetic number, because the mean of its divisors is an integer number (985974784200).

Almost surely, 2^{22121241420340} is an apocalyptic number.

22121241420340 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

22121241420340 is an abundant number, since it is smaller than the sum of its proper divisors (25205548221260).

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

22121241420340 is a wasteful number, since it uses less digits than its factorization.

22121241420340 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 33657384 (or 33657382 counting only the distinct ones).

The product of its (nonzero) digits is 6144, while the sum is 28.

Adding to 22121241420340 its reverse (4302414212122), we get a palindrome (26423655632462).

The spelling of 22121241420340 in words is "twenty-two trillion, one hundred twenty-one billion, two hundred forty-one million, four hundred twenty thousand, three hundred forty".