200112121221 has 8 divisors (see below), whose sum is σ = 267077493984. Its totient is φ = 133277414640.

The previous prime is 200112121219. The next prime is 200112121247. The reversal of 200112121221 is 122121211002.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 200112121221 - 2¹ = 200112121219 is a prime.

It is a super-2 number, since 2×200112121221² (a number of 23 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 200112121221.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (200112121211) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 32662971 + ... + 32669096.

It is an arithmetic number, because the mean of its divisors is an integer number (33384686748).

Almost surely, 2^200112121221 is an apocalyptic number.

It is an amenable number.

200112121221 is a deficient number, since it is larger than the sum of its proper divisors (66965372763).

200112121221 is a wasteful number, since it uses less digits than its factorization.

200112121221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 65333091.

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

Adding to 200112121221 its reverse (122121211002), we get a palindrome (322233332223).

The spelling of 200112121221 in words is "two hundred billion, one hundred twelve million, one hundred twenty-one thousand, two hundred twenty-one".