200222021 has 4 divisors (see below), whose sum is σ = 204482112. Its totient is φ = 195961932.

The previous prime is 200221999. The next prime is 200222027. The reversal of 200222021 is 120222002.

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 200222021 - 2¹⁴ = 200205637 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 200221993 and 200222011.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (200222027) 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, 2129975 + ... + 2130068.

It is an arithmetic number, because the mean of its divisors is an integer number (51120528).

Almost surely, 2^200222021 is an apocalyptic number.

It is an amenable number.

200222021 is a deficient number, since it is larger than the sum of its proper divisors (4260091).

200222021 is an equidigital number, since it uses as much as digits as its factorization.

200222021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4260090.

The product of its (nonzero) digits is 32, while the sum is 11.

The square root of 200222021 is about 14149.9830741948. The cubic root of 200222021 is about 585.0198653979.

Adding to 200222021 its reverse (120222002), we get a palindrome (320444023).

The spelling of 200222021 in words is "two hundred million, two hundred twenty-two thousand, twenty-one".