2212645 has 8 divisors (see below), whose sum is σ = 2795040. Its totient is φ = 1676880.

The previous prime is 2212633. The next prime is 2212657. The reversal of 2212645 is 5462122.

It is an interprime number because it is at equal distance from previous prime (2212633) and next prime (2212657).

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 2212645 - 2¹³ = 2204453 is a prime.

2212645 is a lucky number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 11551 + ... + 11740.

It is an arithmetic number, because the mean of its divisors is an integer number (349380).

2^2212645 is an apocalyptic number.

It is an amenable number.

2212645 is a deficient number, since it is larger than the sum of its proper divisors (582395).

2212645 is a wasteful number, since it uses less digits than its factorization.

2212645 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23315.

The product of its digits is 960, while the sum is 22.

The square root of 2212645 is about 1487.4962184826. The cubic root of 2212645 is about 130.3078502923.

Adding to 2212645 its reverse (5462122), we get a palindrome (7674767).

The spelling of 2212645 in words is "two million, two hundred twelve thousand, six hundred forty-five".