200121222122 has 16 divisors (see below), whose sum is σ = 301128083520. Its totient is φ = 99745592832.

The previous prime is 200121222101. The next prime is 200121222131. The reversal of 200121222122 is 221222121002.

It is a happy number.

200121222122 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a self number, because there is not a number n which added to its sum of digits gives 200121222122.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 913493 + ... + 1111175.

It is an arithmetic number, because the mean of its divisors is an integer number (18820505220).

Almost surely, 2^200121222122 is an apocalyptic number.

200121222122 is a deficient number, since it is larger than the sum of its proper divisors (101006861398).

200121222122 is a wasteful number, since it uses less digits than its factorization.

200121222122 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 199277.

The product of its (nonzero) digits is 128, while the sum is 17.

Adding to 200121222122 its reverse (221222121002), we get a palindrome (421343343124).

The spelling of 200121222122 in words is "two hundred billion, one hundred twenty-one million, two hundred twenty-two thousand, one hundred twenty-two".