22101312243 has 16 divisors (see below), whose sum is σ = 29623438080. Its totient is φ = 14656808736.

The previous prime is 22101312209. The next prime is 22101312251. The reversal of 22101312243 is 34221310122.

It is not a de Polignac number, because 22101312243 - 2¹⁸ = 22101050099 is a prime.

It is not an unprimeable number, because it can be changed into a prime (22101312263) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 823746 + ... + 850152.

It is an arithmetic number, because the mean of its divisors is an integer number (1851464880).

Almost surely, 2^22101312243 is an apocalyptic number.

22101312243 is a deficient number, since it is larger than the sum of its proper divisors (7522125837).

22101312243 is a wasteful number, since it uses less digits than its factorization.

22101312243 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 27866.

The product of its (nonzero) digits is 576, while the sum is 21.

Adding to 22101312243 its reverse (34221310122), we get a palindrome (56322622365).

The spelling of 22101312243 in words is "twenty-two billion, one hundred one million, three hundred twelve thousand, two hundred forty-three".