122120201121999 has 32 divisors (see below), whose sum is σ = 171657719116800. Its totient is φ = 77011130972160.

The previous prime is 122120201121983. The next prime is 122120201122001. The reversal of 122120201121999 is 999121102021221.

It is not a de Polignac number, because 122120201121999 - 2⁴ = 122120201121983 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 122120201121999.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (122120201121899) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1692105987 + ... + 1692178155.

It is an arithmetic number, because the mean of its divisors is an integer number (5364303722400).

Almost surely, 2^{122120201121999} is an apocalyptic number.

122120201121999 is a gapful number since it is divisible by the number (19) formed by its first and last digit.

122120201121999 is a deficient number, since it is larger than the sum of its proper divisors (49537517994801).

122120201121999 is a wasteful number, since it uses less digits than its factorization.

122120201121999 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 116975.

The product of its (nonzero) digits is 23328, while the sum is 42.

The spelling of 122120201121999 in words is "one hundred twenty-two trillion, one hundred twenty billion, two hundred one million, one hundred twenty-one thousand, nine hundred ninety-nine".