200212202021221 has 16 divisors (see below), whose sum is σ = 215897327932608. Its totient is φ = 184567713004800.

The previous prime is 200212202021197. The next prime is 200212202021231. The reversal of 200212202021221 is 122120202212002.

It is a cyclic number.

It is not a de Polignac number, because 200212202021221 - 2¹⁵ = 200212201988453 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 (200212202021231) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 124313661 + ... + 125913901.

It is an arithmetic number, because the mean of its divisors is an integer number (13493582995788).

Almost surely, 2^{200212202021221} is an apocalyptic number.

It is an amenable number.

200212202021221 is a deficient number, since it is larger than the sum of its proper divisors (15685125911387).

200212202021221 is a wasteful number, since it uses less digits than its factorization.

200212202021221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1612932.

The product of its (nonzero) digits is 256, while the sum is 19.

Adding to 200212202021221 its reverse (122120202212002), we get a palindrome (322332404233223).

The spelling of 200212202021221 in words is "two hundred trillion, two hundred twelve billion, two hundred two million, twenty-one thousand, two hundred twenty-one".