12211111223533 has 2 divisors, whose sum is σ = 12211111223534. Its totient is φ = 12211111223532.

The previous prime is 12211111223327. The next prime is 12211111223537. The reversal of 12211111223533 is 33532211111221.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 9923085908649 + 2288025314884 = 3150093^2 + 1512622^2 .

It is a cyclic number.

It is not a de Polignac number, because 12211111223533 - 2⁹ = 12211111223021 is a prime.

It is a super-2 number, since 2×12211111223533² (a number of 27 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (12211111223537) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6105555611766 + 6105555611767.

It is an arithmetic number, because the mean of its divisors is an integer number (6105555611767).

Almost surely, 2^{12211111223533} is an apocalyptic number.

It is an amenable number.

12211111223533 is a deficient number, since it is larger than the sum of its proper divisors (1).

12211111223533 is an equidigital number, since it uses as much as digits as its factorization.

12211111223533 is an evil number, because the sum of its binary digits is even.

The product of its digits is 2160, while the sum is 28.

Adding to 12211111223533 its reverse (33532211111221), we get a palindrome (45743322334754).

The spelling of 12211111223533 in words is "twelve trillion, two hundred eleven billion, one hundred eleven million, two hundred twenty-three thousand, five hundred thirty-three".