22361002272 has 144 divisors (see below), whose sum is σ = 72746698752. Its totient is φ = 6382402560.

The previous prime is 22361002271. The next prime is 22361002297. The reversal of 22361002272 is 27220016322.

22361002272 is a `hidden beast` number, since 2 + 23 + 610 + 0 + 2 + 27 + 2 = 666.

It is a tau number, because it is divible by the number of its divisors (144).

It is not an unprimeable number, because it can be changed into a prime (22361002271) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 2206497 + ... + 2216607.

It is an arithmetic number, because the mean of its divisors is an integer number (505185408).

Almost surely, 2^22361002272 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 22361002272, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (36373349376).

22361002272 is an abundant number, since it is smaller than the sum of its proper divisors (50385696480).

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

22361002272 is a wasteful number, since it uses less digits than its factorization.

22361002272 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11231 (or 11220 counting only the distinct ones).

The product of its (nonzero) digits is 4032, while the sum is 27.

Adding to 22361002272 its reverse (27220016322), we get a palindrome (49581018594).

The spelling of 22361002272 in words is "twenty-two billion, three hundred sixty-one million, two thousand, two hundred seventy-two".