22001211233 has 2 divisors, whose sum is σ = 22001211234. Its totient is φ = 22001211232.

The previous prime is 22001211217. The next prime is 22001211251. The reversal of 22001211233 is 33211210022.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 18282284944 + 3718926289 = 135212^2 + 60983^2 .

It is a cyclic number.

It is not a de Polignac number, because 22001211233 - 2⁴ = 22001211217 is a prime.

It is not a weakly prime, because it can be changed into another prime (22001211263) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11000605616 + 11000605617.

It is an arithmetic number, because the mean of its divisors is an integer number (11000605617).

Almost surely, 2^22001211233 is an apocalyptic number.

It is an amenable number.

22001211233 is a deficient number, since it is larger than the sum of its proper divisors (1).

22001211233 is an equidigital number, since it uses as much as digits as its factorization.

22001211233 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 144, while the sum is 17.

Adding to 22001211233 its reverse (33211210022), we get a palindrome (55212421255).

The spelling of 22001211233 in words is "twenty-two billion, one million, two hundred eleven thousand, two hundred thirty-three".