121112022101909 has 2 divisors, whose sum is σ = 121112022101910. Its totient is φ = 121112022101908.

The previous prime is 121112022101899. The next prime is 121112022102017. The reversal of 121112022101909 is 909101220211121.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 120860955967684 + 251066134225 = 10993678^2 + 501065^2 .

It is a cyclic number.

It is not a de Polignac number, because 121112022101909 - 2¹⁶ = 121112022036373 is a prime.

It is a super-2 number, since 2×121112022101909² (a number of 29 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (121112022101209) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 60556011050954 + 60556011050955.

It is an arithmetic number, because the mean of its divisors is an integer number (60556011050955).

Almost surely, 2^{121112022101909} is an apocalyptic number.

It is an amenable number.

121112022101909 is a deficient number, since it is larger than the sum of its proper divisors (1).

121112022101909 is an equidigital number, since it uses as much as digits as its factorization.

121112022101909 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 121112022101909 in words is "one hundred twenty-one trillion, one hundred twelve billion, twenty-two million, one hundred one thousand, nine hundred nine".