200011112121 has 16 divisors (see below), whose sum is σ = 274103763264. Its totient is φ = 129635250624.

The previous prime is 200011112113. The next prime is 200011112123. The reversal of 200011112121 is 121211110002.

It is not a de Polignac number, because 200011112121 - 2³ = 200011112113 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 200011112097 and 200011112106.

It is not an unprimeable number, because it can be changed into a prime (200011112123) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 563775 + ... + 847268.

It is an arithmetic number, because the mean of its divisors is an integer number (17131485204).

Almost surely, 2^200011112121 is an apocalyptic number.

It is an amenable number.

200011112121 is a deficient number, since it is larger than the sum of its proper divisors (74092651143).

200011112121 is a wasteful number, since it uses less digits than its factorization.

200011112121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1412360.

The product of its (nonzero) digits is 8, while the sum is 12.

Adding to 200011112121 its reverse (121211110002), we get a palindrome (321222222123).

The spelling of 200011112121 in words is "two hundred billion, eleven million, one hundred twelve thousand, one hundred twenty-one".