200111002020121 has 16 divisors (see below), whose sum is σ = 210750830152960. Its totient is φ = 189481960402560.

The previous prime is 200111002020113. The next prime is 200111002020217. The reversal of 200111002020121 is 121020200111002.

It is a cyclic number.

It is not a de Polignac number, because 200111002020121 - 2³ = 200111002020113 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (200111002020101) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 376139515 + ... + 376671151.

It is an arithmetic number, because the mean of its divisors is an integer number (13171926884560).

Almost surely, 2^{200111002020121} is an apocalyptic number.

It is an amenable number.

200111002020121 is a deficient number, since it is larger than the sum of its proper divisors (10639828132839).

200111002020121 is a wasteful number, since it uses less digits than its factorization.

200111002020121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 541744.

The product of its (nonzero) digits is 16, while the sum is 13.

Adding to 200111002020121 its reverse (121020200111002), we get a palindrome (321131202131123).

The spelling of 200111002020121 in words is "two hundred trillion, one hundred eleven billion, two million, twenty thousand, one hundred twenty-one".