12122021099 has 8 divisors (see below), whose sum is σ = 12231799632. Its totient is φ = 12012286720.

The previous prime is 12122021069. The next prime is 12122021113. The reversal of 12122021099 is 99012022121.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-12122021099 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12122021069) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 821087 + ... + 835719.

It is an arithmetic number, because the mean of its divisors is an integer number (1528974954).

Almost surely, 2^12122021099 is an apocalyptic number.

12122021099 is a deficient number, since it is larger than the sum of its proper divisors (109778533).

12122021099 is a wasteful number, since it uses less digits than its factorization.

12122021099 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22077.

The product of its (nonzero) digits is 1296, while the sum is 29.

The spelling of 12122021099 in words is "twelve billion, one hundred twenty-two million, twenty-one thousand, ninety-nine".