122121310999 has 8 divisors (see below), whose sum is σ = 132695482880. Its totient is φ = 111961812600.

The previous prime is 122121310973. The next prime is 122121311009. The reversal of 122121310999 is 999013121221.

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 122121310999 - 2²¹ = 122119213847 is a prime.

It is a super-2 number, since 2×122121310999² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (122121310699) 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, 103667757 + ... + 103668934.

It is an arithmetic number, because the mean of its divisors is an integer number (16586935360).

Almost surely, 2^122121310999 is an apocalyptic number.

122121310999 is a gapful number since it is divisible by the number (19) formed by its first and last digit.

122121310999 is a deficient number, since it is larger than the sum of its proper divisors (10574171881).

122121310999 is a wasteful number, since it uses less digits than its factorization.

122121310999 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 207336741.

The product of its (nonzero) digits is 17496, while the sum is 40.

The spelling of 122121310999 in words is "one hundred twenty-two billion, one hundred twenty-one million, three hundred ten thousand, nine hundred ninety-nine".