2231332121212 has 12 divisors (see below), whose sum is σ = 3915471081760. Its totient is φ = 1112626097856.

The previous prime is 2231332121201. The next prime is 2231332121251. The reversal of 2231332121212 is 2121212331322.

It is a super-3 number, since 3×2231332121212³ (a number of 38 digits) contains 333 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 759989037 + ... + 759991972.

Almost surely, 2^{2231332121212} is an apocalyptic number.

It is an amenable number.

2231332121212 is a deficient number, since it is larger than the sum of its proper divisors (1684138960548).

2231332121212 is a wasteful number, since it uses less digits than its factorization.

2231332121212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1519981380 (or 1519981378 counting only the distinct ones).

The product of its digits is 1728, while the sum is 25.

Adding to 2231332121212 its reverse (2121212331322), we get a palindrome (4352544452534).

The spelling of 2231332121212 in words is "two trillion, two hundred thirty-one billion, three hundred thirty-two million, one hundred twenty-one thousand, two hundred twelve".