2231201212 has 6 divisors (see below), whose sum is σ = 3904602128. Its totient is φ = 1115600604.

The previous prime is 2231201207. The next prime is 2231201233. The reversal of 2231201212 is 2121021322.

It is a happy number.

It is a super-3 number, since 3×2231201212³ (a number of 29 digits) contains 333 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 278900148 + ... + 278900155.

Almost surely, 2^2231201212 is an apocalyptic number.

It is an amenable number.

2231201212 is a deficient number, since it is larger than the sum of its proper divisors (1673400916).

2231201212 is a wasteful number, since it uses less digits than its factorization.

2231201212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 557800307 (or 557800305 counting only the distinct ones).

The product of its (nonzero) digits is 96, while the sum is 16.

The square root of 2231201212 is about 47235.5926394493. The cubic root of 2231201212 is about 1306.7110963247.

Adding to 2231201212 its reverse (2121021322), we get a palindrome (4352222534).

The spelling of 2231201212 in words is "two billion, two hundred thirty-one million, two hundred one thousand, two hundred twelve".