1122124394 has 4 divisors (see below), whose sum is σ = 1683186594. Its totient is φ = 561062196.

The previous prime is 1122124369. The next prime is 1122124397. The reversal of 1122124394 is 4934212211.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 4934212211 = 3847 ⋅1282613.

It can be written as a sum of positive squares in only one way, i.e., 1108024369 + 14100025 = 33287^2 + 3755^2 .

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (1122124397) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 280531097 + ... + 280531100.

Almost surely, 2^1122124394 is an apocalyptic number.

1122124394 is a deficient number, since it is larger than the sum of its proper divisors (561062200).

1122124394 is an equidigital number, since it uses as much as digits as its factorization.

1122124394 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 561062199.

The product of its digits is 3456, while the sum is 29.

The square root of 1122124394 is about 33498.1252311230. The cubic root of 1122124394 is about 1039.1550070521.

The spelling of 1122124394 in words is "one billion, one hundred twenty-two million, one hundred twenty-four thousand, three hundred ninety-four".