22123351040 has 264 divisors, whose sum is σ = 62228177712. Its totient is φ = 7524679680.

The previous prime is 22123351039. The next prime is 22123351049. The reversal of 22123351040 is 4015332122.

It is a super-2 number, since 2×22123351040² (a number of 21 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 22123350997 and 22123351015.

It is not an unprimeable number, because it can be changed into a prime (22123351049) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 40893170 + ... + 40893710.

Almost surely, 2^22123351040 is an apocalyptic number.

22123351040 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 22123351040, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (31114088856).

22123351040 is an abundant number, since it is smaller than the sum of its proper divisors (40104826672).

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

22123351040 is a wasteful number, since it uses less digits than its factorization.

22123351040 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 743 (or 718 counting only the distinct ones).

The product of its (nonzero) digits is 1440, while the sum is 23.

Adding to 22123351040 its reverse (4015332122), we get a palindrome (26138683162).

The spelling of 22123351040 in words is "twenty-two billion, one hundred twenty-three million, three hundred fifty-one thousand, forty".