22112123425240 has 32 divisors (see below), whose sum is σ = 51357189893760. Its totient is φ = 8559531648000.

The previous prime is 22112123425219. The next prime is 22112123425241. The reversal of 22112123425240 is 4252432121122.

It is a Harshad number since it is a multiple of its sum of digits (31).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22112123425241) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 8916177561 + ... + 8916180040.

It is an arithmetic number, because the mean of its divisors is an integer number (1604912184180).

Almost surely, 2^{22112123425240} is an apocalyptic number.

22112123425240 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

22112123425240 is an abundant number, since it is smaller than the sum of its proper divisors (29245066468520).

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

22112123425240 is a wasteful number, since it uses less digits than its factorization.

22112123425240 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17832357643 (or 17832357639 counting only the distinct ones).

The product of its (nonzero) digits is 15360, while the sum is 31.

Adding to 22112123425240 its reverse (4252432121122), we get a palindrome (26364555546362).

The spelling of 22112123425240 in words is "twenty-two trillion, one hundred twelve billion, one hundred twenty-three million, four hundred twenty-five thousand, two hundred forty".