1213210222 has 16 divisors (see below), whose sum is σ = 2080379520. Its totient is φ = 519799608.

The previous prime is 1213210181. The next prime is 1213210259. The reversal of 1213210222 is 2220123121.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 1213210196 and 1213210205.

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 in 7 ways as a sum of consecutive naturals, for example, 49453 + ... + 69799.

It is an arithmetic number, because the mean of its divisors is an integer number (130023720).

Almost surely, 2^1213210222 is an apocalyptic number.

1213210222 is a deficient number, since it is larger than the sum of its proper divisors (867169298).

1213210222 is a wasteful number, since it uses less digits than its factorization.

1213210222 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24615.

The product of its (nonzero) digits is 96, while the sum is 16.

The square root of 1213210222 is about 34831.1673935859. The cubic root of 1213210222 is about 1066.5437791807.

Adding to 1213210222 its reverse (2220123121), we get a palindrome (3433333343).

The spelling of 1213210222 in words is "one billion, two hundred thirteen million, two hundred ten thousand, two hundred twenty-two".