22113025740 has 432 divisors, whose sum is σ = 80820623520. Its totient is φ = 4850565120.

The previous prime is 22113025733. The next prime is 22113025763. The reversal of 22113025740 is 4752031122.

It is an unprimeable number.

It is a polite number, since it can be written in 143 ways as a sum of consecutive naturals, for example, 12848080 + ... + 12849800.

Almost surely, 2^22113025740 is an apocalyptic number.

22113025740 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 22113025740, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (40410311760).

22113025740 is an abundant number, since it is smaller than the sum of its proper divisors (58707597780).

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

22113025740 is a wasteful number, since it uses less digits than its factorization.

22113025740 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1802 (or 1780 counting only the distinct ones).

The product of its (nonzero) digits is 3360, while the sum is 27.

Adding to 22113025740 its reverse (4752031122), we get a palindrome (26865056862).

The spelling of 22113025740 in words is "twenty-two billion, one hundred thirteen million, twenty-five thousand, seven hundred forty".