2273212 has 6 divisors (see below), whose sum is σ = 3978128. Its totient is φ = 1136604.

The previous prime is 2273209. The next prime is 2273213. The reversal of 2273212 is 2123722.

It is a self number, because there is not a number n which added to its sum of digits gives 2273212.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2273213) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 284148 + ... + 284155.

2^2273212 is an apocalyptic number.

It is an amenable number.

2273212 is a deficient number, since it is larger than the sum of its proper divisors (1704916).

2273212 is a wasteful number, since it uses less digits than its factorization.

2273212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 568307 (or 568305 counting only the distinct ones).

The product of its digits is 336, while the sum is 19.

The square root of 2273212 is about 1507.7174801666. The cubic root of 2273212 is about 131.4861411756.

Adding to 2273212 its reverse (2123722), we get a palindrome (4396934).

It can be divided in two parts, 2273 and 212, that added together give a triangular number (2485 = T₇₀).

The spelling of 2273212 in words is "two million, two hundred seventy-three thousand, two hundred twelve".