22201220233 has 2 divisors, whose sum is σ = 22201220234. Its totient is φ = 22201220232.

The previous prime is 22201220219. The next prime is 22201220351. The reversal of 22201220233 is 33202210222.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 21824743824 + 376476409 = 147732^2 + 19403^2 .

It is a cyclic number.

It is not a de Polignac number, because 22201220233 - 2³³ = 13611285641 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 22201220233.

It is not a weakly prime, because it can be changed into another prime (22201220213) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11100610116 + 11100610117.

It is an arithmetic number, because the mean of its divisors is an integer number (11100610117).

Almost surely, 2^22201220233 is an apocalyptic number.

It is an amenable number.

22201220233 is a deficient number, since it is larger than the sum of its proper divisors (1).

22201220233 is an equidigital number, since it uses as much as digits as its factorization.

22201220233 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 576, while the sum is 19.

Adding to 22201220233 its reverse (33202210222), we get a palindrome (55403430455).

The spelling of 22201220233 in words is "twenty-two billion, two hundred one million, two hundred twenty thousand, two hundred thirty-three".