1122431122 has 4 divisors (see below), whose sum is σ = 1683646686. Its totient is φ = 561215560.

The previous prime is 1122431117. The next prime is 1122431153. The reversal of 1122431122 is 2211342211.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 2211342211 = 13 ⋅170103247.

It can be written as a sum of positive squares in only one way, i.e., 690165441 + 432265681 = 26271^2 + 20791^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 1122431122.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 280607779 + ... + 280607782.

Almost surely, 2^1122431122 is an apocalyptic number.

1122431122 is a deficient number, since it is larger than the sum of its proper divisors (561215564).

1122431122 is an equidigital number, since it uses as much as digits as its factorization.

1122431122 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 561215563.

The product of its digits is 192, while the sum is 19.

The square root of 1122431122 is about 33502.7032043684. The cubic root of 1122431122 is about 1039.2496813149.

Adding to 1122431122 its reverse (2211342211), we get a palindrome (3333773333).

The spelling of 1122431122 in words is "one billion, one hundred twenty-two million, four hundred thirty-one thousand, one hundred twenty-two".