12211220202229 has 2 divisors, whose sum is σ = 12211220202230. Its totient is φ = 12211220202228.

The previous prime is 12211220202199. The next prime is 12211220202287. The reversal of 12211220202229 is 92220202211221.

12211220202229 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 6538734839025 + 5672485363204 = 2557095^2 + 2381698^2 .

It is a cyclic number.

It is not a de Polignac number, because 12211220202229 - 2²¹ = 12211218105077 is a prime.

It is a super-2 number, since 2×12211220202229² (a number of 27 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 12211220202197 and 12211220202206.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (12211220202829) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6105610101114 + 6105610101115.

It is an arithmetic number, because the mean of its divisors is an integer number (6105610101115).

Almost surely, 2^{12211220202229} is an apocalyptic number.

It is an amenable number.

12211220202229 is a deficient number, since it is larger than the sum of its proper divisors (1).

12211220202229 is an equidigital number, since it uses as much as digits as its factorization.

12211220202229 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2304, while the sum is 28.

The spelling of 12211220202229 in words is "twelve trillion, two hundred eleven billion, two hundred twenty million, two hundred two thousand, two hundred twenty-nine".