12222002022212 has 12 divisors (see below), whose sum is σ = 21600270901356. Its totient is φ = 6050496050400.

The previous prime is 12222002022119. The next prime is 12222002022221. The reversal of 12222002022212 is 21222020022221.

It can be written as a sum of positive squares in 2 ways, for example, as 12044064847936 + 177937174276 = 3470456^2 + 421826^2 .

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, 15126239723 + ... + 15126240530.

It is an arithmetic number, because the mean of its divisors is an integer number (1800022575113).

Almost surely, 2^{12222002022212} is an apocalyptic number.

It is an amenable number.

12222002022212 is a deficient number, since it is larger than the sum of its proper divisors (9378268879144).

12222002022212 is a wasteful number, since it uses less digits than its factorization.

12222002022212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 30252480358 (or 30252480356 counting only the distinct ones).

The product of its (nonzero) digits is 512, while the sum is 20.

Adding to 12222002022212 its reverse (21222020022221), we get a palindrome (33444022044433).

Subtracting 12222002022212 from its reverse (21222020022221), we obtain a square (9000018000009 = 3000003²).

The spelling of 12222002022212 in words is "twelve trillion, two hundred twenty-two billion, two million, twenty-two thousand, two hundred twelve".