20331022222312 has 8 divisors (see below), whose sum is σ = 38120666666850. Its totient is φ = 10165511111152.

The previous prime is 20331022222201. The next prime is 20331022222319. The reversal of 20331022222312 is 21322222013302.

It can be written as a sum of positive squares in only one way, i.e., 13822676308996 + 6508345913316 = 3717886^2 + 2551146^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is a super-3 number, since 3×20331022222312³ (a number of 41 digits) contains 333 as substring.

It is not an unprimeable number, because it can be changed into a prime (20331022222319) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1270688888887 + ... + 1270688888902.

Almost surely, 2^{20331022222312} is an apocalyptic number.

It is an amenable number.

20331022222312 is a deficient number, since it is larger than the sum of its proper divisors (17789644444538).

20331022222312 is a wasteful number, since it uses less digits than its factorization.

20331022222312 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2541377777795 (or 2541377777791 counting only the distinct ones).

The product of its (nonzero) digits is 3456, while the sum is 25.

Adding to 20331022222312 its reverse (21322222013302), we get a palindrome (41653244235614).

The spelling of 20331022222312 in words is "twenty trillion, three hundred thirty-one billion, twenty-two million, two hundred twenty-two thousand, three hundred twelve".