121222233021209 has 2 divisors, whose sum is σ = 121222233021210. Its totient is φ = 121222233021208.

The previous prime is 121222233021193. The next prime is 121222233021229. The reversal of 121222233021209 is 902120332222121.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 97229164435225 + 23993068585984 = 9860485^2 + 4898272^2 .

It is a cyclic number.

It is not a de Polignac number, because 121222233021209 - 2⁴ = 121222233021193 is a prime.

It is not a weakly prime, because it can be changed into another prime (121222233021229) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 60611116510604 + 60611116510605.

It is an arithmetic number, because the mean of its divisors is an integer number (60611116510605).

Almost surely, 2^{121222233021209} is an apocalyptic number.

It is an amenable number.

121222233021209 is a deficient number, since it is larger than the sum of its proper divisors (1).

121222233021209 is an equidigital number, since it uses as much as digits as its factorization.

121222233021209 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 10368, while the sum is 32.

The spelling of 121222233021209 in words is "one hundred twenty-one trillion, two hundred twenty-two billion, two hundred thirty-three million, twenty-one thousand, two hundred nine".