200121212010112 has 32 divisors (see below), whose sum is σ = 398680190508420. Its totient is φ = 100060301451264.

The previous prime is 200121212010053. The next prime is 200121212010127. The reversal of 200121212010112 is 211010212121002.

It can be written as a sum of positive squares in 2 ways, for example, as 177762915866176 + 22358296143936 = 13332776^2 + 4728456^2 .

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

It is a Harshad number since it is a multiple of its sum of digits (16).

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, 43242928 + ... + 47646544.

Almost surely, 2^{200121212010112} is an apocalyptic number.

It is an amenable number.

200121212010112 is a deficient number, since it is larger than the sum of its proper divisors (198558978498308).

200121212010112 is an equidigital number, since it uses as much as digits as its factorization.

200121212010112 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4758668 (or 4758656 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 16.

Adding to 200121212010112 its reverse (211010212121002), we get a palindrome (411131424131114).

The spelling of 200121212010112 in words is "two hundred trillion, one hundred twenty-one billion, two hundred twelve million, ten thousand, one hundred twelve".