1210111222 has 4 divisors (see below), whose sum is σ = 1815166836. Its totient is φ = 605055610.

The previous prime is 1210111193. The next prime is 1210111247. The reversal of 1210111222 is 2221110121.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 2221110121 = 1279 ⋅1736599.

It is a super-2 number, since 2×1210111222² = 2928738339220666568, which contains 22 as substring.

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, 302527804 + ... + 302527807.

It is an arithmetic number, because the mean of its divisors is an integer number (453791709).

Almost surely, 2^1210111222 is an apocalyptic number.

1210111222 is a deficient number, since it is larger than the sum of its proper divisors (605055614).

1210111222 is an equidigital number, since it uses as much as digits as its factorization.

1210111222 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 605055613.

The product of its (nonzero) digits is 16, while the sum is 13.

The square root of 1210111222 is about 34786.6529289611. The cubic root of 1210111222 is about 1065.6348854666.

Adding to 1210111222 its reverse (2221110121), we get a palindrome (3431221343).

The spelling of 1210111222 in words is "one billion, two hundred ten million, one hundred eleven thousand, two hundred twenty-two".