200122122221 has 8 divisors (see below), whose sum is σ = 228884142144. Its totient is φ = 171403388640.

The previous prime is 200122122143. The next prime is 200122122241. The reversal of 200122122221 is 122221221002.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 200122122221 - 2¹⁴ = 200122105837 is a prime.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 200122122221.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (200122122241) 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 7 ways as a sum of consecutive naturals, for example, 10811675 + ... + 10830168.

It is an arithmetic number, because the mean of its divisors is an integer number (28610517768).

Almost surely, 2^200122122221 is an apocalyptic number.

It is an amenable number.

200122122221 is a deficient number, since it is larger than the sum of its proper divisors (28762019923).

200122122221 is a wasteful number, since it uses less digits than its factorization.

200122122221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21643171.

The product of its (nonzero) digits is 128, while the sum is 17.

Adding to 200122122221 its reverse (122221221002), we get a palindrome (322343343223).

The spelling of 200122122221 in words is "two hundred billion, one hundred twenty-two million, one hundred twenty-two thousand, two hundred twenty-one".