200221112021 has 4 divisors (see below), whose sum is σ = 228824128032. Its totient is φ = 171618096012.

The previous prime is 200221111907. The next prime is 200221112029. The reversal of 200221112021 is 120211122002.

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 a de Polignac number, because none of the positive numbers 2^k-200221112021 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 200221111987 and 200221112005.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (200221112029) 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 3 ways as a sum of consecutive naturals, for example, 14301507995 + ... + 14301508008.

It is an arithmetic number, because the mean of its divisors is an integer number (57206032008).

Almost surely, 2^200221112021 is an apocalyptic number.

It is an amenable number.

200221112021 is a deficient number, since it is larger than the sum of its proper divisors (28603016011).

200221112021 is an equidigital number, since it uses as much as digits as its factorization.

200221112021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28603016010.

The product of its (nonzero) digits is 32, while the sum is 14.

Adding to 200221112021 its reverse (120211122002), we get a palindrome (320432234023).

The spelling of 200221112021 in words is "two hundred billion, two hundred twenty-one million, one hundred twelve thousand, twenty-one".