2212172 has 6 divisors (see below), whose sum is σ = 3871308. Its totient is φ = 1106084.

The previous prime is 2212169. The next prime is 2212181. The reversal of 2212172 is 2712122.

It is a self number, because there is not a number n which added to its sum of digits gives 2212172.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 276518 + ... + 276525.

It is an arithmetic number, because the mean of its divisors is an integer number (645218).

2^2212172 is an apocalyptic number.

It is an amenable number.

2212172 is a deficient number, since it is larger than the sum of its proper divisors (1659136).

2212172 is a wasteful number, since it uses less digits than its factorization.

2212172 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 553047 (or 553045 counting only the distinct ones).

The product of its digits is 112, while the sum is 17.

The square root of 2212172 is about 1487.3372179839. The cubic root of 2212172 is about 130.2985642711.

Adding to 2212172 its reverse (2712122), we get a palindrome (4924294).

The spelling of 2212172 in words is "two million, two hundred twelve thousand, one hundred seventy-two".