122212002011221 has 2 divisors, whose sum is σ = 122212002011222. Its totient is φ = 122212002011220.

The previous prime is 122212002011201. The next prime is 122212002011261. The reversal of 122212002011221 is 122110200212221.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 74615994183025 + 47596007828196 = 8638055^2 + 6898986^2 .

It is a cyclic number.

It is not a de Polignac number, because 122212002011221 - 2⁵ = 122212002011189 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (122212002011201) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 61106001005610 + 61106001005611.

It is an arithmetic number, because the mean of its divisors is an integer number (61106001005611).

Almost surely, 2^{122212002011221} is an apocalyptic number.

It is an amenable number.

122212002011221 is a deficient number, since it is larger than the sum of its proper divisors (1).

122212002011221 is an equidigital number, since it uses as much as digits as its factorization.

122212002011221 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 128, while the sum is 19.

Adding to 122212002011221 its reverse (122110200212221), we get a palindrome (244322202223442).

The spelling of 122212002011221 in words is "one hundred twenty-two trillion, two hundred twelve billion, two million, eleven thousand, two hundred twenty-one".