22101111240 has 256 divisors, whose sum is σ = 74724249600. Its totient is φ = 5188660224.

The previous prime is 22101111211. The next prime is 22101111251. The reversal of 22101111240 is 4211110122.

It is a Harshad number since it is a multiple of its sum of digits (15).

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 16755301 + ... + 16756619.

It is an arithmetic number, because the mean of its divisors is an integer number (291891600).

Almost surely, 2^22101111240 is an apocalyptic number.

22101111240 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 22101111240, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (37362124800).

22101111240 is an abundant number, since it is smaller than the sum of its proper divisors (52623138360).

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

22101111240 is a wasteful number, since it uses less digits than its factorization.

22101111240 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1836 (or 1832 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 15.

Adding to 22101111240 its reverse (4211110122), we get a palindrome (26312221362).

The spelling of 22101111240 in words is "twenty-two billion, one hundred one million, one hundred eleven thousand, two hundred forty".