120122111999 has 16 divisors (see below), whose sum is σ = 129746849280. Its totient is φ = 110850586560.

The previous prime is 120122111951. The next prime is 120122112001. The reversal of 120122111999 is 999111221021.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-120122111999 is a prime.

It is a super-2 number, since 2×120122111999² (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 (120122111899) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (31) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 130334 + ... + 507179.

It is an arithmetic number, because the mean of its divisors is an integer number (8109178080).

Almost surely, 2^120122111999 is an apocalyptic number.

120122111999 is a gapful number since it is divisible by the number (19) formed by its first and last digit.

120122111999 is a deficient number, since it is larger than the sum of its proper divisors (9624737281).

120122111999 is a wasteful number, since it uses less digits than its factorization.

120122111999 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 637790.

The product of its (nonzero) digits is 5832, while the sum is 38.

The spelling of 120122111999 in words is "one hundred twenty billion, one hundred twenty-two million, one hundred eleven thousand, nine hundred ninety-nine".