200121010111012 has 24 divisors (see below), whose sum is σ = 350465707380096. Its totient is φ = 99987976737888.

The previous prime is 200121010110997. The next prime is 200121010111021. The reversal of 200121010111012 is 210111010121002.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 200121010110983 and 200121010111001.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 27727458 + ... + 34191430.

It is an arithmetic number, because the mean of its divisors is an integer number (14602737807504).

Almost surely, 2^{200121010111012} is an apocalyptic number.

It is an amenable number.

200121010111012 is a deficient number, since it is larger than the sum of its proper divisors (150344697269084).

200121010111012 is a wasteful number, since it uses less digits than its factorization.

200121010111012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6469587 (or 6469585 counting only the distinct ones).

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

Adding to 200121010111012 its reverse (210111010121002), we get a palindrome (410232020232014).

The spelling of 200121010111012 in words is "two hundred trillion, one hundred twenty-one billion, ten million, one hundred eleven thousand, twelve".