22001123113 has 4 divisors (see below), whose sum is σ = 22595748100. Its totient is φ = 21406498128.

The previous prime is 22001123107. The next prime is 22001123149. The reversal of 22001123113 is 31132110022.

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 12874760089 + 9126363024 = 113467^2 + 95532^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-22001123113 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (22001123413) 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, 297312438 + ... + 297312511.

It is an arithmetic number, because the mean of its divisors is an integer number (5648937025).

Almost surely, 2^22001123113 is an apocalyptic number.

It is an amenable number.

22001123113 is a deficient number, since it is larger than the sum of its proper divisors (594624987).

22001123113 is an equidigital number, since it uses as much as digits as its factorization.

22001123113 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 594624986.

The product of its (nonzero) digits is 72, while the sum is 16.

Adding to 22001123113 its reverse (31132110022), we get a palindrome (53133233135).

The spelling of 22001123113 in words is "twenty-two billion, one million, one hundred twenty-three thousand, one hundred thirteen".