200221212222 has 48 divisors (see below), whose sum is σ = 483506346960. Its totient is φ = 59508470016.

The previous prime is 200221212221. The next prime is 200221212227. The reversal of 200221212222 is 222212122002.

200221212222 is a `hidden beast` number, since 200 + 221 + 21 + 2 + 222 = 666.

200221212222 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a junction number, because it is equal to n+sod(n) for n = 200221212195 and 200221212204.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (200221212221) 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 23 ways as a sum of consecutive naturals, for example, 17213073 + ... + 17224700.

It is an arithmetic number, because the mean of its divisors is an integer number (10073048895).

Almost surely, 2^200221212222 is an apocalyptic number.

200221212222 is an abundant number, since it is smaller than the sum of its proper divisors (283285134738).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

200221212222 is a wasteful number, since it uses less digits than its factorization.

200221212222 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 34437817 (or 34437814 counting only the distinct ones).

The product of its (nonzero) digits is 256, while the sum is 18.

Adding to 200221212222 its reverse (222212122002), we get a palindrome (422433334224).

The spelling of 200221212222 in words is "two hundred billion, two hundred twenty-one million, two hundred twelve thousand, two hundred twenty-two".