200121212102 has 32 divisors (see below), whose sum is σ = 364112340480. Its totient is φ = 80528469120.

The previous prime is 200121212041. The next prime is 200121212147. The reversal of 200121212102 is 201212121002.

200121212102 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (14).

It is a congruent number.

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 15 ways as a sum of consecutive naturals, for example, 903674 + ... + 1103117.

It is an arithmetic number, because the mean of its divisors is an integer number (11378510640).

Almost surely, 2^200121212102 is an apocalyptic number.

200121212102 is a deficient number, since it is larger than the sum of its proper divisors (163991128378).

200121212102 is a wasteful number, since it uses less digits than its factorization.

200121212102 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2007236.

The product of its (nonzero) digits is 32, while the sum is 14.

Adding to 200121212102 its reverse (201212121002), we get a palindrome (401333333104).

The spelling of 200121212102 in words is "two hundred billion, one hundred twenty-one million, two hundred twelve thousand, one hundred two".