630206222 has 4 divisors (see below), whose sum is σ = 945309336. Its totient is φ = 315103110.

The previous prime is 630206207. The next prime is 630206243. The reversal of 630206222 is 222602036.

It is a happy number.

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

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 157551554 + ... + 157551557.

It is an arithmetic number, because the mean of its divisors is an integer number (236327334).

Almost surely, 2^630206222 is an apocalyptic number.

630206222 is a deficient number, since it is larger than the sum of its proper divisors (315103114).

630206222 is a wasteful number, since it uses less digits than its factorization.

630206222 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 315103113.

The product of its (nonzero) digits is 1728, while the sum is 23.

The square root of 630206222 is about 25103.9085004706. The cubic root of 630206222 is about 857.3554157314.

Adding to 630206222 its reverse (222602036), we get a palindrome (852808258).

The spelling of 630206222 in words is "six hundred thirty million, two hundred six thousand, two hundred twenty-two".