2661212 has 6 divisors (see below), whose sum is σ = 4657128. Its totient is φ = 1330604.

The previous prime is 2661199. The next prime is 2661221. The reversal of 2661212 is 2121662.

It is a happy number.

2661212 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 332648 + ... + 332655.

It is an arithmetic number, because the mean of its divisors is an integer number (776188).

2^2661212 is an apocalyptic number.

It is an amenable number.

2661212 is a deficient number, since it is larger than the sum of its proper divisors (1995916).

2661212 is a wasteful number, since it uses less digits than its factorization.

2661212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 665307 (or 665305 counting only the distinct ones).

The product of its digits is 288, while the sum is 20.

The square root of 2661212 is about 1631.3221631548. The cubic root of 2661212 is about 138.5776389627.

Adding to 2661212 its reverse (2121662), we get a palindrome (4782874).

The spelling of 2661212 in words is "two million, six hundred sixty-one thousand, two hundred twelve".