1122223442 has 4 divisors (see below), whose sum is σ = 1683335166. Its totient is φ = 561111720.

The previous prime is 1122223381. The next prime is 1122223447. The reversal of 1122223442 is 2443222211.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 2443222211 = 4093 ⋅596927.

It can be written as a sum of positive squares in only one way, i.e., 578354401 + 543869041 = 24049^2 + 23321^2 .

It is not an unprimeable number, because it can be changed into a prime (1122223447) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 280555859 + ... + 280555862.

Almost surely, 2^1122223442 is an apocalyptic number.

1122223442 is a deficient number, since it is larger than the sum of its proper divisors (561111724).

1122223442 is an equidigital number, since it uses as much as digits as its factorization.

1122223442 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 561111723.

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

The square root of 1122223442 is about 33499.6036095951. The cubic root of 1122223442 is about 1039.1855809639.

Adding to 1122223442 its reverse (2443222211), we get a palindrome (3565445653).

The spelling of 1122223442 in words is "one billion, one hundred twenty-two million, two hundred twenty-three thousand, four hundred forty-two".