1129212 has 36 divisors (see below), whose sum is σ = 3262896. Its totient is φ = 322560.

The previous prime is 1129211. The next prime is 1129213. The reversal of 1129212 is 2129211.

It is an interprime number because it is at equal distance from previous prime (1129211) and next prime (1129213).

It is a tau number, because it is divible by the number of its divisors (36).

It is a Harshad number since it is a multiple of its sum of digits (18).

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1129211) 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, 1989 + ... + 2492.

It is an arithmetic number, because the mean of its divisors is an integer number (90636).

2^1129212 is an apocalyptic number.

1129212 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

1129212 is an abundant number, since it is smaller than the sum of its proper divisors (2133684).

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

1129212 is a wasteful number, since it uses less digits than its factorization.

1129212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4498 (or 4493 counting only the distinct ones).

The product of its digits is 72, while the sum is 18.

The square root of 1129212 is about 1062.6438726121. The cubic root of 1129212 is about 104.1338267323.

Subtracting 1129212 from its reverse (2129211), we obtain a palindrome (999999).

The spelling of 1129212 in words is "one million, one hundred twenty-nine thousand, two hundred twelve".