2231030021212 has 12 divisors (see below), whose sum is σ = 3909629012296. Its totient is φ = 1113993160560.

The previous prime is 2231030021201. The next prime is 2231030021219. The reversal of 2231030021212 is 2121200301322.

It is a super-3 number, since 3×2231030021212³ (a number of 38 digits) contains 333 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 2231030021212.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2231030021219) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 380459214 + ... + 380465077.

Almost surely, 2^{2231030021212} is an apocalyptic number.

It is an amenable number.

2231030021212 is a deficient number, since it is larger than the sum of its proper divisors (1678598991084).

2231030021212 is a wasteful number, since it uses less digits than its factorization.

2231030021212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 760925028 (or 760925026 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 19.

Adding to 2231030021212 its reverse (2121200301322), we get a palindrome (4352230322534).

The spelling of 2231030021212 in words is "two trillion, two hundred thirty-one billion, thirty million, twenty-one thousand, two hundred twelve".