121000201010011 has 4 divisors (see below), whose sum is σ = 121196311547112. Its totient is φ = 120804090472912.

The previous prime is 121000201009991. The next prime is 121000201010023. The reversal of 121000201010011 is 110010102000121.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 121000201010011 - 2¹¹ = 121000201007963 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 121000201010011.

It is not an unprimeable number, because it can be changed into a prime (121000201017011) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 98055267625 + ... + 98055268858.

It is an arithmetic number, because the mean of its divisors is an integer number (30299077886778).

Almost surely, 2^{121000201010011} is an apocalyptic number.

121000201010011 is a deficient number, since it is larger than the sum of its proper divisors (196110537101).

121000201010011 is an equidigital number, since it uses as much as digits as its factorization.

121000201010011 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 196110537100.

The product of its (nonzero) digits is 4, while the sum is 10.

Adding to 121000201010011 its reverse (110010102000121), we get a palindrome (231010303010132).

The spelling of 121000201010011 in words is "one hundred twenty-one trillion, two hundred one million, ten thousand, eleven".