200222202220021 has 4 divisors (see below), whose sum is σ = 210760212863200. Its totient is φ = 189684191576844.

The previous prime is 200222202219953. The next prime is 200222202220181. The reversal of 200222202220021 is 120022202222002.

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 200222202220021 - 2⁹ = 200222202219509 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (19), and also a Moran number because the ratio is a prime number: 10538010643159 = 200222202220021 / (2 + 0 + 0 + 2 + 2 + 2 + 2 + 0 + 2 + 2 + 2 + 0 + 0 + 2 + 1).

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (200222202220721) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5269005321561 + ... + 5269005321598.

It is an arithmetic number, because the mean of its divisors is an integer number (52690053215800).

Almost surely, 2^{200222202220021} is an apocalyptic number.

It is an amenable number.

200222202220021 is a deficient number, since it is larger than the sum of its proper divisors (10538010643179).

200222202220021 is a wasteful number, since it uses less digits than its factorization.

200222202220021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10538010643178.

The product of its (nonzero) digits is 512, while the sum is 19.

Adding to 200222202220021 its reverse (120022202222002), we get a palindrome (320244404442023).

The spelling of 200222202220021 in words is "two hundred trillion, two hundred twenty-two billion, two hundred two million, two hundred twenty thousand, twenty-one".