1123220012 has 6 divisors (see below), whose sum is σ = 1965635028. Its totient is φ = 561610004.

The previous prime is 1123219997. The next prime is 1123220027. The reversal of 1123220012 is 2100223211.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (1123219997) and next prime (1123220027).

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 140402498 + ... + 140402505.

It is an arithmetic number, because the mean of its divisors is an integer number (327605838).

Almost surely, 2^1123220012 is an apocalyptic number.

It is an amenable number.

1123220012 is a deficient number, since it is larger than the sum of its proper divisors (842415016).

1123220012 is a wasteful number, since it uses less digits than its factorization.

1123220012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 280805007 (or 280805005 counting only the distinct ones).

The product of its (nonzero) digits is 48, while the sum is 14.

The square root of 1123220012 is about 33514.4746639418. The cubic root of 1123220012 is about 1039.4930998685.

Adding to 1123220012 its reverse (2100223211), we get a palindrome (3223443223).

The spelling of 1123220012 in words is "one billion, one hundred twenty-three million, two hundred twenty thousand, twelve".