22236552213101 has 4 divisors (see below), whose sum is σ = 22236623232732. Its totient is φ = 22236481193472.

The previous prime is 22236552212981. The next prime is 22236552213157. The reversal of 22236552213101 is 10131225563222.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 11011546273225 + 11225005939876 = 3318365^2 + 3350374^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-22236552213101 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22236552233101) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 35038070 + ... + 35667063.

It is an arithmetic number, because the mean of its divisors is an integer number (5559155808183).

Almost surely, 2^{22236552213101} is an apocalyptic number.

It is an amenable number.

22236552213101 is a deficient number, since it is larger than the sum of its proper divisors (71019631).

22236552213101 is an equidigital number, since it uses as much as digits as its factorization.

22236552213101 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 71019630.

The product of its (nonzero) digits is 43200, while the sum is 35.

Adding to 22236552213101 its reverse (10131225563222), we get a palindrome (32367777776323).

The spelling of 22236552213101 in words is "twenty-two trillion, two hundred thirty-six billion, five hundred fifty-two million, two hundred thirteen thousand, one hundred one".