200111211021 has 16 divisors (see below), whose sum is σ = 267857136000. Its totient is φ = 132886709760.

The previous prime is 200111211017. The next prime is 200111211059. The reversal of 200111211021 is 120112111002.

200111211021 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 200111211021 - 2² = 200111211017 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 200111210988 and 200111211006.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (200111211721) 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 15 ways as a sum of consecutive naturals, for example, 2488581 + ... + 2567733.

It is an arithmetic number, because the mean of its divisors is an integer number (16741071000).

Almost surely, 2^200111211021 is an apocalyptic number.

It is an amenable number.

200111211021 is a deficient number, since it is larger than the sum of its proper divisors (67745924979).

200111211021 is a wasteful number, since it uses less digits than its factorization.

200111211021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 82436.

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

Adding to 200111211021 its reverse (120112111002), we get a palindrome (320223322023).

The spelling of 200111211021 in words is "two hundred billion, one hundred eleven million, two hundred eleven thousand, twenty-one".