2212500 has 72 divisors (see below), whose sum is σ = 6562080. Its totient is φ = 580000.

The previous prime is 2212487. The next prime is 2212519. The reversal of 2212500 is 52122.

It is a Harshad number since it is a multiple of its sum of digits (12).

It is an Ulam number.

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, 37471 + ... + 37529.

It is an arithmetic number, because the mean of its divisors is an integer number (91140).

2^2212500 is an apocalyptic number.

2212500 is a gapful number since it is divisible by the number (20) 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 2212500, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3281040).

2212500 is an abundant number, since it is smaller than the sum of its proper divisors (4349580).

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

2212500 is an equidigital number, since it uses as much as digits as its factorization.

2212500 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 91 (or 69 counting only the distinct ones).

The product of its (nonzero) digits is 40, while the sum is 12.

The square root of 2212500 is about 1487.4474780644. The cubic root of 2212500 is about 130.3050037669.

Adding to 2212500 its reverse (52122), we get a palindrome (2264622).

The spelling of 2212500 in words is "two million, two hundred twelve thousand, five hundred".