22011221333 has 2 divisors, whose sum is σ = 22011221334. Its totient is φ = 22011221332.

The previous prime is 22011221317. The next prime is 22011221371. The reversal of 22011221333 is 33312211022.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 19432917604 + 2578303729 = 139402^2 + 50777^2 .

It is a cyclic number.

It is not a de Polignac number, because 22011221333 - 2⁴ = 22011221317 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (22011221933) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11005610666 + 11005610667.

It is an arithmetic number, because the mean of its divisors is an integer number (11005610667).

Almost surely, 2^22011221333 is an apocalyptic number.

It is an amenable number.

22011221333 is a deficient number, since it is larger than the sum of its proper divisors (1).

22011221333 is an equidigital number, since it uses as much as digits as its factorization.

22011221333 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 432, while the sum is 20.

Adding to 22011221333 its reverse (33312211022), we get a palindrome (55323432355).

The spelling of 22011221333 in words is "twenty-two billion, eleven million, two hundred twenty-one thousand, three hundred thirty-three".