12211212221933 has 2 divisors, whose sum is σ = 12211212221934. Its totient is φ = 12211212221932.

The previous prime is 12211212221911. The next prime is 12211212222113. The reversal of 12211212221933 is 33912221211221.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 10622006576164 + 1589205645769 = 3259142^2 + 1260637^2 .

It is a cyclic number.

It is not a de Polignac number, because 12211212221933 - 2⁴² = 7813165710829 is a prime.

It is a super-2 number, since 2×12211212221933² (a number of 27 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 12211212221933.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (12211212221833) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6105606110966 + 6105606110967.

It is an arithmetic number, because the mean of its divisors is an integer number (6105606110967).

Almost surely, 2^{12211212221933} is an apocalyptic number.

It is an amenable number.

12211212221933 is a deficient number, since it is larger than the sum of its proper divisors (1).

12211212221933 is an equidigital number, since it uses as much as digits as its factorization.

12211212221933 is an evil number, because the sum of its binary digits is even.

The product of its digits is 5184, while the sum is 32.

The spelling of 12211212221933 in words is "twelve trillion, two hundred eleven billion, two hundred twelve million, two hundred twenty-one thousand, nine hundred thirty-three".