2231312301212 has 24 divisors (see below), whose sum is σ = 3920719668096. Its totient is φ = 1111110959088.

The previous prime is 2231312301173. The next prime is 2231312301221. The reversal of 2231312301212 is 2121032131322.

It is a super-3 number, since 3×2231312301212³ (a number of 38 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 in 7 ways as a sum of consecutive naturals, for example, 1557203 + ... + 2624405.

It is an arithmetic number, because the mean of its divisors is an integer number (163363319504).

Almost surely, 2^{2231312301212} is an apocalyptic number.

It is an amenable number.

2231312301212 is a deficient number, since it is larger than the sum of its proper divisors (1689407366884).

2231312301212 is a wasteful number, since it uses less digits than its factorization.

2231312301212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1069337 (or 1069335 counting only the distinct ones).

The product of its (nonzero) digits is 864, while the sum is 23.

Adding to 2231312301212 its reverse (2121032131322), we get a palindrome (4352344432534).

The spelling of 2231312301212 in words is "two trillion, two hundred thirty-one billion, three hundred twelve million, three hundred one thousand, two hundred twelve".