121000200011 has 4 divisors (see below), whose sum is σ = 121057521024. Its totient is φ = 120942879000.

The previous prime is 121000199989. The next prime is 121000200023. The reversal of 121000200011 is 110002000121.

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 121000200011 - 2²² = 120996005707 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (121000200311) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 28657340 + ... + 28661561.

It is an arithmetic number, because the mean of its divisors is an integer number (30264380256).

Almost surely, 2^121000200011 is an apocalyptic number.

121000200011 is a deficient number, since it is larger than the sum of its proper divisors (57321013).

121000200011 is an equidigital number, since it uses as much as digits as its factorization.

121000200011 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 57321012.

The product of its (nonzero) digits is 4, while the sum is 8.

Adding to 121000200011 its reverse (110002000121), we get a palindrome (231002200132).

It can be divided in two parts, 1 and 21000200011, that added together give a palindrome (21000200012).

The spelling of 121000200011 in words is "one hundred twenty-one billion, two hundred thousand, eleven".