1222142122 has 16 divisors (see below), whose sum is σ = 1921361472. Its totient is φ = 581922880.

The previous prime is 1222142113. The next prime is 1222142147. The reversal of 1222142122 is 2212412221.

It is a self number, because there is not a number n which added to its sum of digits gives 1222142122.

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, 48079 + ... + 68962.

It is an arithmetic number, because the mean of its divisors is an integer number (120085092).

Almost surely, 2^1222142122 is an apocalyptic number.

1222142122 is a deficient number, since it is larger than the sum of its proper divisors (699219350).

1222142122 is a wasteful number, since it uses less digits than its factorization.

1222142122 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 117293.

The product of its digits is 256, while the sum is 19.

The square root of 1222142122 is about 34959.1493317558. The cubic root of 1222142122 is about 1069.1547527417.

Adding to 1222142122 its reverse (2212412221), we get a palindrome (3434554343).

The spelling of 1222142122 in words is "one billion, two hundred twenty-two million, one hundred forty-two thousand, one hundred twenty-two".