12212022221109 has 24 divisors (see below), whose sum is σ = 18270405667800. Its totient is φ = 7850895413760.

The previous prime is 12212022221093. The next prime is 12212022221129. The reversal of 12212022221109 is 90112222021221.

12212022221109 is a `hidden beast` number, since 1 + 221 + 2 + 0 + 222 + 211 + 0 + 9 = 666.

It can be written as a sum of positive squares in 4 ways, for example, as 8791094540484 + 3420927680625 = 2964978^2 + 1849575^2 .

It is not a de Polignac number, because 12212022221109 - 2⁴ = 12212022221093 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12212022221129) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 28706872 + ... + 29129169.

It is an arithmetic number, because the mean of its divisors is an integer number (761266902825).

Almost surely, 2^{12212022221109} is an apocalyptic number.

It is an amenable number.

12212022221109 is a deficient number, since it is larger than the sum of its proper divisors (6058383446691).

12212022221109 is a wasteful number, since it uses less digits than its factorization.

12212022221109 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 57836885 (or 57836882 counting only the distinct ones).

The product of its (nonzero) digits is 1152, while the sum is 27.

The spelling of 12212022221109 in words is "twelve trillion, two hundred twelve billion, twenty-two million, two hundred twenty-one thousand, one hundred nine".