200212012222221 has 4 divisors (see below), whose sum is σ = 266949349629632. Its totient is φ = 133474674814812.

The previous prime is 200212012222217. The next prime is 200212012222247. The reversal of 200212012222221 is 122222210212002.

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 not a de Polignac number, because 200212012222221 - 2² = 200212012222217 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (200212012222021) 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, 33368668703701 + ... + 33368668703706.

It is an arithmetic number, because the mean of its divisors is an integer number (66737337407408).

Almost surely, 2^{200212012222221} is an apocalyptic number.

It is an amenable number.

200212012222221 is a deficient number, since it is larger than the sum of its proper divisors (66737337407411).

200212012222221 is an equidigital number, since it uses as much as digits as its factorization.

200212012222221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 66737337407410.

The product of its (nonzero) digits is 512, while the sum is 21.

Adding to 200212012222221 its reverse (122222210212002), we get a palindrome (322434222434223).

The spelling of 200212012222221 in words is "two hundred trillion, two hundred twelve billion, twelve million, two hundred twenty-two thousand, two hundred twenty-one".