1122212223 has 12 divisors (see below), whose sum is σ = 1768334568. Its totient is φ = 680128560.

The previous prime is 1122212213. The next prime is 1122212239. The reversal of 1122212223 is 3222122211.

It is not a de Polignac number, because 1122212223 - 2⁸ = 1122211967 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 1122212196 and 1122212205.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1122212213) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 5667640 + ... + 5667837.

It is an arithmetic number, because the mean of its divisors is an integer number (147361214).

Almost surely, 2^1122212223 is an apocalyptic number.

1122212223 is a deficient number, since it is larger than the sum of its proper divisors (646122345).

1122212223 is a wasteful number, since it uses less digits than its factorization.

1122212223 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11335494 (or 11335491 counting only the distinct ones).

The product of its digits is 192, while the sum is 18.

The square root of 1122212223 is about 33499.4361594341. The cubic root of 1122212223 is about 1039.1821179988.

Adding to 1122212223 its reverse (3222122211), we get a palindrome (4344334434).

The spelling of 1122212223 in words is "one billion, one hundred twenty-two million, two hundred twelve thousand, two hundred twenty-three".