123211222999 has 8 divisors (see below), whose sum is σ = 125594054928. Its totient is φ = 120851193600.

The previous prime is 123211222991. The next prime is 123211223039. The reversal of 123211222999 is 999222112321.

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 123211222999 - 2³ = 123211222991 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 (123211222991) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5689722 + ... + 5711335.

It is an arithmetic number, because the mean of its divisors is an integer number (15699256866).

Almost surely, 2^123211222999 is an apocalyptic number.

123211222999 is a deficient number, since it is larger than the sum of its proper divisors (2382831929).

123211222999 is a wasteful number, since it uses less digits than its factorization.

123211222999 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11401265.

The product of its digits is 69984, while the sum is 43.

The spelling of 123211222999 in words is "one hundred twenty-three billion, two hundred eleven million, two hundred twenty-two thousand, nine hundred ninety-nine".