200112111221 has 32 divisors (see below), whose sum is σ = 223317388800. Its totient is φ = 179276697600.

The previous prime is 200112111187. The next prime is 200112111253. The reversal of 200112111221 is 122111211002.

It is not a de Polignac number, because 200112111221 - 2²² = 200107916917 is a prime.

It is a super-2 number, since 2×200112111221² (a number of 23 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 200112111196 and 200112111205.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (200112111281) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 67399025 + ... + 67401993.

It is an arithmetic number, because the mean of its divisors is an integer number (6978668400).

Almost surely, 2^200112111221 is an apocalyptic number.

It is an amenable number.

200112111221 is a deficient number, since it is larger than the sum of its proper divisors (23205277579).

200112111221 is an equidigital number, since it uses as much as digits as its factorization.

200112111221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3722 (or 3700 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 14.

Adding to 200112111221 its reverse (122111211002), we get a palindrome (322223322223).

The spelling of 200112111221 in words is "two hundred billion, one hundred twelve million, one hundred eleven thousand, two hundred twenty-one".