22113212233 has 4 divisors (see below), whose sum is σ = 25272242560. Its totient is φ = 18954181908.

The previous prime is 22113212227. The next prime is 22113212239. The reversal of 22113212233 is 33221231122.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is an interprime number because it is at equal distance from previous prime (22113212227) and next prime (22113212239).

It is a cyclic number.

It is not a de Polignac number, because 22113212233 - 2⁵ = 22113212201 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (22113212239) 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, 1579515153 + ... + 1579515166.

It is an arithmetic number, because the mean of its divisors is an integer number (6318060640).

Almost surely, 2^22113212233 is an apocalyptic number.

It is an amenable number.

22113212233 is a deficient number, since it is larger than the sum of its proper divisors (3159030327).

22113212233 is an equidigital number, since it uses as much as digits as its factorization.

22113212233 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3159030326.

The product of its digits is 864, while the sum is 22.

Adding to 22113212233 its reverse (33221231122), we get a palindrome (55334443355).

The spelling of 22113212233 in words is "twenty-two billion, one hundred thirteen million, two hundred twelve thousand, two hundred thirty-three".