1123212 has 12 divisors (see below), whose sum is σ = 2620856. Its totient is φ = 374400.

The previous prime is 1123211. The next prime is 1123217. The reversal of 1123212 is 2123211.

It is a tau number, because it is divible by the number of its divisors (12).

It is a Harshad number since it is a multiple of its sum of digits (12), and also a Moran number because the ratio is a prime number: 93601 = 1123212 / (1 + 1 + 2 + 3 + 2 + 1 + 2).

It is a nude number because it is divisible by every one of its digits.

It is a plaindrome in base 16.

It is not an unprimeable number, because it can be changed into a prime (1123211) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 46789 + ... + 46812.

2^1123212 is an apocalyptic number.

1123212 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

1123212 is an abundant number, since it is smaller than the sum of its proper divisors (1497644).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1123212 is a wasteful number, since it uses less digits than its factorization.

1123212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 93608 (or 93606 counting only the distinct ones).

The product of its digits is 24, while the sum is 12.

The square root of 1123212 is about 1059.8169653294. The cubic root of 1123212 is about 103.9490628272.

Adding to 1123212 its reverse (2123211), we get a palindrome (3246423).

Subtracting 1123212 from its reverse (2123211), we obtain a palindrome (999999).

The spelling of 1123212 in words is "one million, one hundred twenty-three thousand, two hundred twelve".