100121220121199 has 2 divisors, whose sum is σ = 100121220121200. Its totient is φ = 100121220121198.

The previous prime is 100121220121189. The next prime is 100121220121229. The reversal of 100121220121199 is 991121022121001.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 100121220121199 - 2³⁶ = 100052500644463 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (100121220121189) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 50060610060599 + 50060610060600.

It is an arithmetic number, because the mean of its divisors is an integer number (50060610060600).

Almost surely, 2^{100121220121199} is an apocalyptic number.

100121220121199 is a deficient number, since it is larger than the sum of its proper divisors (1).

100121220121199 is an equidigital number, since it uses as much as digits as its factorization.

100121220121199 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1296, while the sum is 32.

The spelling of 100121220121199 in words is "one hundred trillion, one hundred twenty-one billion, two hundred twenty million, one hundred twenty-one thousand, one hundred ninety-nine".