200121111010012 has 12 divisors (see below), whose sum is σ = 350267524686856. Its totient is φ = 100044675385200.

The previous prime is 200121111009991. The next prime is 200121111010019. The reversal of 200121111010012 is 210010111121002.

It is a happy number.

It is a super-2 number, since 2×200121111010012² (a number of 29 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 200121111009974 and 200121111010001.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (200121111010019) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3970001598 + ... + 3970052005.

Almost surely, 2^{200121111010012} is an apocalyptic number.

It is an amenable number.

200121111010012 is a deficient number, since it is larger than the sum of its proper divisors (150146413676844).

200121111010012 is a wasteful number, since it uses less digits than its factorization.

200121111010012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7940059908 (or 7940059906 counting only the distinct ones).

The product of its (nonzero) digits is 8, while the sum is 13.

Adding to 200121111010012 its reverse (210010111121002), we get a palindrome (410131222131014).

The spelling of 200121111010012 in words is "two hundred trillion, one hundred twenty-one billion, one hundred eleven million, ten thousand, twelve".