1219212 has 60 divisors (see below), whose sum is σ = 3293136. Its totient is φ = 393120.

The previous prime is 1219177. The next prime is 1219213. The reversal of 1219212 is 2129121.

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 not an unprimeable number, because it can be changed into a prime (1219213) by changing a digit.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 17137 + ... + 17207.

2^1219212 is an apocalyptic number.

1219212 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1219212, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1646568).

1219212 is an abundant number, since it is smaller than the sum of its proper divisors (2073924).

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

1219212 is a wasteful number, since it uses less digits than its factorization.

1219212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 140 (or 129 counting only the distinct ones).

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

The square root of 1219212 is about 1104.1793332607. The cubic root of 1219212 is about 106.8299625565.

Subtracting 1219212 from its reverse (2129121), we obtain a palindrome (909909).

It can be divided in two parts, 1219 and 212, that added together give a triangular number (1431 = T₅₃).

The spelling of 1219212 in words is "one million, two hundred nineteen thousand, two hundred twelve".