2231212 has 6 divisors (see below), whose sum is σ = 3904628. Its totient is φ = 1115604.

The previous prime is 2231209. The next prime is 2231219. The reversal of 2231212 is 2121322.

It is a super-3 number, since 3×2231212³ = 33322974880247160384, which contains 333 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 2231192 and 2231201.

It is not an unprimeable number, because it can be changed into a prime (2231219) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 278898 + ... + 278905.

2^2231212 is an apocalyptic number.

It is an amenable number.

2231212 is a deficient number, since it is larger than the sum of its proper divisors (1673416).

2231212 is a wasteful number, since it uses less digits than its factorization.

2231212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 557807 (or 557805 counting only the distinct ones).

The product of its digits is 48, while the sum is 13.

The square root of 2231212 is about 1493.7242047982. The cubic root of 2231212 is about 130.6713202332.

Adding to 2231212 its reverse (2121322), we get a palindrome (4352534).

The spelling of 2231212 in words is "two million, two hundred thirty-one thousand, two hundred twelve".