1243422122 has 8 divisors (see below), whose sum is σ = 1868238372. Its totient is φ = 620676000.

The previous prime is 1243422119. The next prime is 1243422133. The reversal of 1243422122 is 2212243421.

It can be written as a sum of positive squares in 2 ways, for example, as 1234889881 + 8532241 = 35141^2 + 2921^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 516029 + ... + 518432.

Almost surely, 2^1243422122 is an apocalyptic number.

1243422122 is a deficient number, since it is larger than the sum of its proper divisors (624816250).

1243422122 is a wasteful number, since it uses less digits than its factorization.

1243422122 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1035064.

The product of its digits is 1536, while the sum is 23.

The square root of 1243422122 is about 35262.1911117276. The cubic root of 1243422122 is about 1075.3244730280.

Adding to 1243422122 its reverse (2212243421), we get a palindrome (3455665543).

The spelling of 1243422122 in words is "one billion, two hundred forty-three million, four hundred twenty-two thousand, one hundred twenty-two".