200221233231 has 4 divisors (see below), whose sum is σ = 266961644312. Its totient is φ = 133480822152.

The previous prime is 200221233227. The next prime is 200221233281. The reversal of 200221233231 is 132332122002.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 200221233231 - 2² = 200221233227 is a prime.

It is a super-2 number, since 2×200221233231² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 200221233198 and 200221233207.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (200221233281) 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, 33370205536 + ... + 33370205541.

It is an arithmetic number, because the mean of its divisors is an integer number (66740411078).

Almost surely, 2^200221233231 is an apocalyptic number.

200221233231 is a deficient number, since it is larger than the sum of its proper divisors (66740411081).

200221233231 is an equidigital number, since it uses as much as digits as its factorization.

200221233231 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 66740411080.

The product of its (nonzero) digits is 864, while the sum is 21.

Adding to 200221233231 its reverse (132332122002), we get a palindrome (332553355233).

The spelling of 200221233231 in words is "two hundred billion, two hundred twenty-one million, two hundred thirty-three thousand, two hundred thirty-one".