200121020011 has 8 divisors (see below), whose sum is σ = 218696182848. Its totient is φ = 181609581000.

The previous prime is 200121020009. The next prime is 200121020023. The reversal of 200121020011 is 110020121002.

200121020011 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 200121020011 - 2¹ = 200121020009 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 200121020011.

It is not an unprimeable number, because it can be changed into a prime (200121020311) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 15924385 + ... + 15936946.

It is an arithmetic number, because the mean of its divisors is an integer number (27337022856).

Almost surely, 2^200121020011 is an apocalyptic number.

200121020011 is a deficient number, since it is larger than the sum of its proper divisors (18575162837).

200121020011 is a wasteful number, since it uses less digits than its factorization.

200121020011 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 31861913.

The product of its (nonzero) digits is 8, while the sum is 10.

Adding to 200121020011 its reverse (110020121002), we get a palindrome (310141141013).

It can be divided in two parts, 2001 and 21020011, that added together give a palindrome (21022012).

The spelling of 200121020011 in words is "two hundred billion, one hundred twenty-one million, twenty thousand, eleven".