1222113122 has 4 divisors (see below), whose sum is σ = 1833169686. Its totient is φ = 611056560.

The previous prime is 1222113103. The next prime is 1222113127. The reversal of 1222113122 is 2213112221.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 2213112221 = 2357 ⋅938953.

It can be written as a sum of positive squares in only one way, i.e., 869011441 + 353101681 = 29479^2 + 18791^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 1222113122.

It is not an unprimeable number, because it can be changed into a prime (1222113127) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 305528279 + ... + 305528282.

Almost surely, 2^1222113122 is an apocalyptic number.

1222113122 is a deficient number, since it is larger than the sum of its proper divisors (611056564).

1222113122 is an equidigital number, since it uses as much as digits as its factorization.

1222113122 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 611056563.

The product of its digits is 96, while the sum is 17.

The square root of 1222113122 is about 34958.7345594774. The cubic root of 1222113122 is about 1069.1462960785.

Adding to 1222113122 its reverse (2213112221), we get a palindrome (3435225343).

Subtracting 1222113122 from its reverse (2213112221), we obtain a palindrome (990999099).

The spelling of 1222113122 in words is "one billion, two hundred twenty-two million, one hundred thirteen thousand, one hundred twenty-two".