200121212202112 has 32 divisors (see below), whose sum is σ = 398681233252380. Its totient is φ = 100060039934976.

The previous prime is 200121212202071. The next prime is 200121212202139. The reversal of 200121212202112 is 211202212121002.

It can be written as a sum of positive squares in 2 ways, for example, as 188614625559616 + 11506586642496 = 13733704^2 + 3392136^2 .

It is a tau number, because it is divible by the number of its divisors (32).

It is a self number, because there is not a number n which added to its sum of digits gives 200121212202112.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 18759898 + ... + 27425830.

Almost surely, 2^{200121212202112} is an apocalyptic number.

It is an amenable number.

200121212202112 is a deficient number, since it is larger than the sum of its proper divisors (198560021050268).

200121212202112 is an equidigital number, since it uses as much as digits as its factorization.

200121212202112 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8846360 (or 8846348 counting only the distinct ones).

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

Adding to 200121212202112 its reverse (211202212121002), we get a palindrome (411323424323114).

The spelling of 200121212202112 in words is "two hundred trillion, one hundred twenty-one billion, two hundred twelve million, two hundred two thousand, one hundred twelve".