200021212012 has 24 divisors (see below), whose sum is σ = 350657911296. Its totient is φ = 99833310288.

The previous prime is 200021212003. The next prime is 200021212031. The reversal of 200021212012 is 210212120002.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 200021211983 and 200021212001.

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, 22311843 + ... + 22320805.

It is an arithmetic number, because the mean of its divisors is an integer number (14610746304).

Almost surely, 2^200021212012 is an apocalyptic number.

It is an amenable number.

200021212012 is a deficient number, since it is larger than the sum of its proper divisors (150636699284).

200021212012 is a wasteful number, since it uses less digits than its factorization.

200021212012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18237 (or 18235 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 13.

Adding to 200021212012 its reverse (210212120002), we get a palindrome (410233332014).

The spelling of 200021212012 in words is "two hundred billion, twenty-one million, two hundred twelve thousand, twelve".