2116212 has 72 divisors (see below), whose sum is σ = 5937120. Its totient is φ = 584640.

The previous prime is 2116199. The next prime is 2116291. The reversal of 2116212 is 2126112.

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

It is a junction number, because it is equal to n+sod(n) for n = 2116191 and 2116200.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 34662 + ... + 34722.

It is an arithmetic number, because the mean of its divisors is an integer number (82460).

2^2116212 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2116212, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2968560).

2116212 is an abundant number, since it is smaller than the sum of its proper divisors (3820908).

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

2116212 is a wasteful number, since it uses less digits than its factorization.

2116212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 141 (or 132 counting only the distinct ones).

The product of its digits is 48, while the sum is 15.

The square root of 2116212 is about 1454.7205917289. The cubic root of 2116212 is about 128.3866078170.

The spelling of 2116212 in words is "two million, one hundred sixteen thousand, two hundred twelve".