1122213123 has 18 divisors (see below), whose sum is σ = 1683244004. Its totient is φ = 748137708.

The previous prime is 1122213107. The next prime is 1122213133. The reversal of 1122213123 is 3213122211.

It is not a de Polignac number, because 1122213123 - 2⁴ = 1122213107 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1122213096 and 1122213105.

It is not an unprimeable number, because it can be changed into a prime (1122213133) by changing a digit.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 78961 + ... + 92082.

Almost surely, 2^1122213123 is an apocalyptic number.

1122213123 is a deficient number, since it is larger than the sum of its proper divisors (561030881).

1122213123 is an frugal number, since it uses more digits than its factorization.

1122213123 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 171067 (or 171046 counting only the distinct ones).

The product of its digits is 144, while the sum is 18.

The square root of 1122213123 is about 33499.4495924933. The cubic root of 1122213123 is about 1039.1823958024.

Adding to 1122213123 its reverse (3213122211), we get a palindrome (4335335334).

The spelling of 1122213123 in words is "one billion, one hundred twenty-two million, two hundred thirteen thousand, one hundred twenty-three".