200121202020012 has 192 divisors, whose sum is σ = 594547999610880. Its totient is φ = 50977913739264.

The previous prime is 200121202019987. The next prime is 200121202020041. The reversal of 200121202020012 is 210020202121002.

It is a junction number, because it is equal to n+sod(n) for n = 200121202019973 and 200121202020000.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 12541312 + ... + 23612007.

It is an arithmetic number, because the mean of its divisors is an integer number (3096604164640).

Almost surely, 2^{200121202020012} is an apocalyptic number.

It is an amenable number.

200121202020012 is an abundant number, since it is smaller than the sum of its proper divisors (394426797590868).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

200121202020012 is a wasteful number, since it uses less digits than its factorization.

200121202020012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 36153520 (or 36153518 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 15.

Adding to 200121202020012 its reverse (210020202121002), we get a palindrome (410141404141014).

The spelling of 200121202020012 in words is "two hundred trillion, one hundred twenty-one billion, two hundred two million, twenty thousand, twelve".