22121430241240 has 64 divisors (see below), whose sum is σ = 54301426716960. Its totient is φ = 8043657093120.

The previous prime is 22121430241223. The next prime is 22121430241271. The reversal of 22121430241240 is 4214203412122.

It is a junction number, because it is equal to n+sod(n) for n = 22121430241199 and 22121430241208.

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, 5572522 + ... + 8677318.

Almost surely, 2^{22121430241240} is an apocalyptic number.

22121430241240 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

22121430241240 is an abundant number, since it is smaller than the sum of its proper divisors (32179996475720).

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

22121430241240 is a wasteful number, since it uses less digits than its factorization.

22121430241240 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3121012 (or 3121008 counting only the distinct ones).

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

Adding to 22121430241240 its reverse (4214203412122), we get a palindrome (26335633653362).

The spelling of 22121430241240 in words is "twenty-two trillion, one hundred twenty-one billion, four hundred thirty million, two hundred forty-one thousand, two hundred forty".