2212860 has 48 divisors (see below), whose sum is σ = 6674976. Its totient is φ = 544512.

The previous prime is 2212831. The next prime is 2212871. The reversal of 2212860 is 682122.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 639 + ... + 2198.

It is an arithmetic number, because the mean of its divisors is an integer number (139062).

2^2212860 is an apocalyptic number.

2212860 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2212860 is an abundant number, since it is smaller than the sum of its proper divisors (4462116).

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

2212860 is a wasteful number, since it uses less digits than its factorization.

2212860 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2862 (or 2860 counting only the distinct ones).

The product of its (nonzero) digits is 384, while the sum is 21.

The square root of 2212860 is about 1487.5684858184. The cubic root of 2212860 is about 130.3120707736.

Adding to 2212860 its reverse (682122), we get a palindrome (2894982).

It can be divided in two parts, 221 and 2860, that added together give a triangular number (3081 = T₇₈).

The spelling of 2212860 in words is "two million, two hundred twelve thousand, eight hundred sixty".