200111221212 has 48 divisors (see below), whose sum is σ = 535159027200. Its totient is φ = 57010802112.

The previous prime is 200111221201. The next prime is 200111221229. The reversal of 200111221212 is 212122111002.

It is a junction number, because it is equal to n+sod(n) for n = 200111221191 and 200111221200.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3383688 + ... + 3442319.

It is an arithmetic number, because the mean of its divisors is an integer number (11149146400).

Almost surely, 2^200111221212 is an apocalyptic number.

It is an amenable number.

200111221212 is an abundant number, since it is smaller than the sum of its proper divisors (335047805988).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

200111221212 is a wasteful number, since it uses less digits than its factorization.

200111221212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6826370 (or 6826368 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 15.

Adding to 200111221212 its reverse (212122111002), we get a palindrome (412233332214).

The spelling of 200111221212 in words is "two hundred billion, one hundred eleven million, two hundred twenty-one thousand, two hundred twelve".