22101158736 has 90 divisors (see below), whose sum is σ = 62094334302. Its totient is φ = 7338332160.

The previous prime is 22101158713. The next prime is 22101158789. The reversal of 22101158736 is 63785110122.

22101158736 is a `hidden beast` number, since 22 + 10 + 11 + 587 + 36 = 666.

It can be written as a sum of positive squares in 3 ways, for example, as 15710115600 + 6391043136 = 125340^2 + 79944^2 .

It is a super-2 number, since 2×22101158736² (a number of 21 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a self number, because there is not a number n which added to its sum of digits gives 22101158736.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 38303280 + ... + 38303856.

Almost surely, 2^22101158736 is an apocalyptic number.

It is an amenable number.

22101158736 is an abundant number, since it is smaller than the sum of its proper divisors (39993175566).

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

22101158736 is an equidigital number, since it uses as much as digits as its factorization.

22101158736 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1629 (or 1043 counting only the distinct ones).

The product of its (nonzero) digits is 20160, while the sum is 36.

Adding to 22101158736 its reverse (63785110122), we get a palindrome (85886268858).

The spelling of 22101158736 in words is "twenty-two billion, one hundred one million, one hundred fifty-eight thousand, seven hundred thirty-six".