22121023241440 has 96 divisors (see below), whose sum is σ = 52300415119680. Its totient is φ = 8841724416000.

The previous prime is 22121023241381. The next prime is 22121023241459. The reversal of 22121023241440 is 4414232012122.

It is a junction number, because it is equal to n+sod(n) for n = 22121023241399 and 22121023241408.

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, 1755491140 + ... + 1755503740.

It is an arithmetic number, because the mean of its divisors is an integer number (544795990830).

Almost surely, 2^{22121023241440} is an apocalyptic number.

22121023241440 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

22121023241440 is an abundant number, since it is smaller than the sum of its proper divisors (30179391878240).

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

22121023241440 is a wasteful number, since it uses less digits than its factorization.

22121023241440 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20036 (or 20028 counting only the distinct ones).

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

Adding to 22121023241440 its reverse (4414232012122), we get a palindrome (26535255253562).

The spelling of 22121023241440 in words is "twenty-two trillion, one hundred twenty-one billion, twenty-three million, two hundred forty-one thousand, four hundred forty".