200121202221112 has 8 divisors (see below), whose sum is σ = 375227254164600. Its totient is φ = 100060601110552.

The previous prime is 200121202221011. The next prime is 200121202221133. The reversal of 200121202221112 is 211122202121002.

It is a tau number, because it is divible by the number of its divisors (8).

It is a self number, because there is not a number n which added to its sum of digits gives 200121202221112.

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 as a sum of consecutive naturals, namely, 12507575138812 + ... + 12507575138827.

It is an arithmetic number, because the mean of its divisors is an integer number (46903406770575).

Almost surely, 2^{200121202221112} is an apocalyptic number.

It is an amenable number.

200121202221112 is a deficient number, since it is larger than the sum of its proper divisors (175106051943488).

200121202221112 is a wasteful number, since it uses less digits than its factorization.

200121202221112 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25015150277645 (or 25015150277641 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 19.

Adding to 200121202221112 its reverse (211122202121002), we get a palindrome (411243404342114).

The spelling of 200121202221112 in words is "two hundred trillion, one hundred twenty-one billion, two hundred two million, two hundred twenty-one thousand, one hundred twelve".