201220121159 has 2 divisors, whose sum is σ = 201220121160. Its totient is φ = 201220121158.

The previous prime is 201220121149. The next prime is 201220121177. The reversal of 201220121159 is 951121022102.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-201220121159 is a prime.

It is a Sophie Germain prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (201220121149) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 100610060579 + 100610060580.

It is an arithmetic number, because the mean of its divisors is an integer number (100610060580).

Almost surely, 2^201220121159 is an apocalyptic number.

201220121159 is a deficient number, since it is larger than the sum of its proper divisors (1).

201220121159 is an equidigital number, since it uses as much as digits as its factorization.

201220121159 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 720, while the sum is 26.

The spelling of 201220121159 in words is "two hundred one billion, two hundred twenty million, one hundred twenty-one thousand, one hundred fifty-nine".