22531022233 has 4 divisors (see below), whose sum is σ = 23856376500. Its totient is φ = 21205667968.

The previous prime is 22531022219. The next prime is 22531022237. The reversal of 22531022233 is 33222013522.

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 6398720064 + 16132302169 = 79992^2 + 127013^2 .

It is a cyclic number.

It is not a de Polignac number, because 22531022233 - 2²⁹ = 21994151321 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 22531022198 and 22531022207.

It is not an unprimeable number, because it can be changed into a prime (22531022237) 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, 662677108 + ... + 662677141.

It is an arithmetic number, because the mean of its divisors is an integer number (5964094125).

Almost surely, 2^22531022233 is an apocalyptic number.

It is an amenable number.

22531022233 is a deficient number, since it is larger than the sum of its proper divisors (1325354267).

22531022233 is a wasteful number, since it uses less digits than its factorization.

22531022233 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1325354266.

The product of its (nonzero) digits is 4320, while the sum is 25.

Adding to 22531022233 its reverse (33222013522), we get a palindrome (55753035755).

The spelling of 22531022233 in words is "twenty-two billion, five hundred thirty-one million, twenty-two thousand, two hundred thirty-three".