121112120221011 has 12 divisors (see below), whose sum is σ = 174941227179888. Its totient is φ = 80740722109104.

The previous prime is 121112120221003. The next prime is 121112120221019. The reversal of 121112120221011 is 110122021211121.

It is a happy number.

121112120221011 is a `hidden beast` number, since 121 + 1 + 121 + 202 + 210 + 11 = 666.

It is an interprime number because it is at equal distance from previous prime (121112120221003) and next prime (121112120221019).

It is not a de Polignac number, because 121112120221011 - 2³ = 121112120221003 is a prime.

It is not an unprimeable number, because it can be changed into a prime (121112120221019) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 56503720 + ... + 58607973.

It is an arithmetic number, because the mean of its divisors is an integer number (14578435598324).

Almost surely, 2^{121112120221011} is an apocalyptic number.

121112120221011 is a deficient number, since it is larger than the sum of its proper divisors (53829106958877).

121112120221011 is a wasteful number, since it uses less digits than its factorization.

121112120221011 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 115228602 (or 115228599 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 18.

Adding to 121112120221011 its reverse (110122021211121), we get a palindrome (231234141432132).

The spelling of 121112120221011 in words is "one hundred twenty-one trillion, one hundred twelve billion, one hundred twenty million, two hundred twenty-one thousand, eleven".