222211221211229 has 2 divisors, whose sum is σ = 222211221211230. Its totient is φ = 222211221211228.

The previous prime is 222211221211223. The next prime is 222211221211237. The reversal of 222211221211229 is 922112122112222.

222211221211229 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., 149094527522329 + 73116693688900 = 12210427^2 + 8550830^2 .

It is a cyclic number.

It is not a de Polignac number, because 222211221211229 - 2¹² = 222211221207133 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 222211221211195 and 222211221211204.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (222211221211223) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 111105610605614 + 111105610605615.

It is an arithmetic number, because the mean of its divisors is an integer number (111105610605615).

Almost surely, 2^{222211221211229} is an apocalyptic number.

It is an amenable number.

222211221211229 is a deficient number, since it is larger than the sum of its proper divisors (1).

222211221211229 is an equidigital number, since it uses as much as digits as its factorization.

222211221211229 is an evil number, because the sum of its binary digits is even.

The product of its digits is 4608, while the sum is 32.

The spelling of 222211221211229 in words is "two hundred twenty-two trillion, two hundred eleven billion, two hundred twenty-one million, two hundred eleven thousand, two hundred twenty-nine".