122220221020209 has 12 divisors (see below), whose sum is σ = 190120343809396. Its totient is φ = 75212443704672.

The previous prime is 122220221020193. The next prime is 122220221020273. The reversal of 122220221020209 is 902020122022221.

122220221020209 is a `hidden beast` number, since 1 + 2 + 2 + 220 + 2 + 210 + 20 + 209 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 23315107559184 + 98905113461025 = 4828572^2 + 9945105^2 .

It is not a de Polignac number, because 122220221020209 - 2⁴ = 122220221020193 is a prime.

It is not an unprimeable number, because it can be changed into a prime (122220221030209) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 522308636722 + ... + 522308636955.

Almost surely, 2^{122220221020209} is an apocalyptic number.

It is an amenable number.

122220221020209 is a deficient number, since it is larger than the sum of its proper divisors (67900122789187).

122220221020209 is a wasteful number, since it uses less digits than its factorization.

122220221020209 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1044617273696 (or 1044617273693 counting only the distinct ones).

The product of its (nonzero) digits is 2304, while the sum is 27.

The spelling of 122220221020209 in words is "one hundred twenty-two trillion, two hundred twenty billion, two hundred twenty-one million, twenty thousand, two hundred nine".