12221129999 has 8 divisors (see below), whose sum is σ = 13163326512. Its totient is φ = 11279234880.

The previous prime is 12221129959. The next prime is 12221130013. The reversal of 12221129999 is 99992112221.

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

It is a cyclic number.

It is not a de Polignac number, because 12221129999 - 2³² = 7926162703 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12221129939) 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, 12692 + ... + 156854.

It is an arithmetic number, because the mean of its divisors is an integer number (1645415814).

Almost surely, 2^12221129999 is an apocalyptic number.

12221129999 is a deficient number, since it is larger than the sum of its proper divisors (942196513).

12221129999 is a wasteful number, since it uses less digits than its factorization.

12221129999 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 150697.

The product of its digits is 104976, while the sum is 47.

The spelling of 12221129999 in words is "twelve billion, two hundred twenty-one million, one hundred twenty-nine thousand, nine hundred ninety-nine".