2212425 has 18 divisors (see below), whose sum is σ = 3963102. Its totient is φ = 1179840.

The previous prime is 2212421. The next prime is 2212429. The reversal of 2212425 is 5242122.

It is an interprime number because it is at equal distance from previous prime (2212421) and next prime (2212429).

It can be written as a sum of positive squares in 3 ways, for example, as 147456 + 2064969 = 384^2 + 1437^2 .

It is not a de Polignac number, because 2212425 - 2² = 2212421 is a prime.

It is a Curzon number.

2212425 is a lucky number.

It is a junction number, because it is equal to n+sod(n) for n = 2212398 and 2212407.

It is not an unprimeable number, because it can be changed into a prime (2212421) by changing a digit.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 4692 + ... + 5141.

2^2212425 is an apocalyptic number.

2212425 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

2212425 is a deficient number, since it is larger than the sum of its proper divisors (1750677).

2212425 is a wasteful number, since it uses less digits than its factorization.

2212425 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9849 (or 9841 counting only the distinct ones).

The product of its digits is 320, while the sum is 18.

The square root of 2212425 is about 1487.4222668765. The cubic root of 2212425 is about 130.3035313773.

Adding to 2212425 its reverse (5242122), we get a palindrome (7454547).

The spelling of 2212425 in words is "two million, two hundred twelve thousand, four hundred twenty-five".