200212120201021 has 4 divisors (see below), whose sum is σ = 203605545967200. Its totient is φ = 196818694434844.

The previous prime is 200212120201019. The next prime is 200212120201031. The reversal of 200212120201021 is 120102021212002.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 200212120201021 - 2¹ = 200212120201019 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 200212120200986 and 200212120201004.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (200212120201031) 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, 1696712883001 + ... + 1696712883118.

It is an arithmetic number, because the mean of its divisors is an integer number (50901386491800).

Almost surely, 2^{200212120201021} is an apocalyptic number.

It is an amenable number.

200212120201021 is a deficient number, since it is larger than the sum of its proper divisors (3393425766179).

200212120201021 is an equidigital number, since it uses as much as digits as its factorization.

200212120201021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3393425766178.

The product of its (nonzero) digits is 64, while the sum is 16.

Adding to 200212120201021 its reverse (120102021212002), we get a palindrome (320314141413023).

The spelling of 200212120201021 in words is "two hundred trillion, two hundred twelve billion, one hundred twenty million, two hundred one thousand, twenty-one".