1210231222 has 4 divisors (see below), whose sum is σ = 1815346836. Its totient is φ = 605115610.

The previous prime is 1210231177. The next prime is 1210231229. The reversal of 1210231222 is 2221320121.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 2221320121 = 13633 ⋅162937.

It is a super-2 number, since 2×1210231222² = 2929319221407226568, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 1210231196 and 1210231205.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1210231229) by changing a digit.

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, 302557804 + ... + 302557807.

It is an arithmetic number, because the mean of its divisors is an integer number (453836709).

Almost surely, 2^1210231222 is an apocalyptic number.

1210231222 is a deficient number, since it is larger than the sum of its proper divisors (605115614).

1210231222 is an equidigital number, since it uses as much as digits as its factorization.

1210231222 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 605115613.

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

The square root of 1210231222 is about 34788.3776856582. The cubic root of 1210231222 is about 1065.6701086640.

Adding to 1210231222 its reverse (2221320121), we get a palindrome (3431551343).

The spelling of 1210231222 in words is "one billion, two hundred ten million, two hundred thirty-one thousand, two hundred twenty-two".