122001121999 has 8 divisors (see below), whose sum is σ = 122130451520. Its totient is φ = 121871844000.

The previous prime is 122001121987. The next prime is 122001122003. The reversal of 122001121999 is 999121100221.

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 122001121999 - 2¹⁷ = 122000990927 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 (122001121919) 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, 6269617 + ... + 6289045.

It is an arithmetic number, because the mean of its divisors is an integer number (15266306440).

Almost surely, 2^122001121999 is an apocalyptic number.

122001121999 is a deficient number, since it is larger than the sum of its proper divisors (129329521).

122001121999 is a wasteful number, since it uses less digits than its factorization.

122001121999 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25761.

The product of its (nonzero) digits is 5832, while the sum is 37.

The spelling of 122001121999 in words is "one hundred twenty-two billion, one million, one hundred twenty-one thousand, nine hundred ninety-nine".