1122123412 has 6 divisors (see below), whose sum is σ = 1963715978. Its totient is φ = 561061704.

The previous prime is 1122123407. The next prime is 1122123421. The reversal of 1122123412 is 2143212211.

It can be written as a sum of positive squares in only one way, i.e., 947777796 + 174345616 = 30786^2 + 13204^2 .

It is a super-3 number, since 3×1122123412³ (a number of 28 digits) contains 333 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 1122123412.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 140265423 + ... + 140265430.

Almost surely, 2^1122123412 is an apocalyptic number.

It is an amenable number.

1122123412 is a deficient number, since it is larger than the sum of its proper divisors (841592566).

1122123412 is a wasteful number, since it uses less digits than its factorization.

1122123412 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 280530857 (or 280530855 counting only the distinct ones).

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

The square root of 1122123412 is about 33498.1105735831. The cubic root of 1122123412 is about 1039.1547039215.

Adding to 1122123412 its reverse (2143212211), we get a palindrome (3265335623).

The spelling of 1122123412 in words is "one billion, one hundred twenty-two million, one hundred twenty-three thousand, four hundred twelve".