200222123221 has 4 divisors (see below), whose sum is σ = 204878451712. Its totient is φ = 195565794732.

The previous prime is 200222123197. The next prime is 200222123243. The reversal of 200222123221 is 122321222002.

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 200222123221 - 2⁷ = 200222123093 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 (200222153221) 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, 2328164181 + ... + 2328164266.

It is an arithmetic number, because the mean of its divisors is an integer number (51219612928).

Almost surely, 2^200222123221 is an apocalyptic number.

It is an amenable number.

200222123221 is a deficient number, since it is larger than the sum of its proper divisors (4656328491).

200222123221 is an equidigital number, since it uses as much as digits as its factorization.

200222123221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4656328490.

The product of its (nonzero) digits is 384, while the sum is 19.

Adding to 200222123221 its reverse (122321222002), we get a palindrome (322543345223).

The spelling of 200222123221 in words is "two hundred billion, two hundred twenty-two million, one hundred twenty-three thousand, two hundred twenty-one".