12211112022212 has 6 divisors (see below), whose sum is σ = 21369446038878. Its totient is φ = 6105556011104.

The previous prime is 12211112022211. The next prime is 12211112022269. The reversal of 12211112022212 is 21222021111221.

It can be written as a sum of positive squares in only one way, i.e., 9892874346436 + 2318237675776 = 3145294^2 + 1522576^2 .

It is a super-2 number, since 2×12211112022212² (a number of 27 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (12211112022211) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1526389002773 + ... + 1526389002780.

It is an arithmetic number, because the mean of its divisors is an integer number (3561574339813).

Almost surely, 2^{12211112022212} is an apocalyptic number.

It is an amenable number.

12211112022212 is a deficient number, since it is larger than the sum of its proper divisors (9158334016666).

12211112022212 is a wasteful number, since it uses less digits than its factorization.

12211112022212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3052778005557 (or 3052778005555 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 20.

Adding to 12211112022212 its reverse (21222021111221), we get a palindrome (33433133133433).

The spelling of 12211112022212 in words is "twelve trillion, two hundred eleven billion, one hundred twelve million, twenty-two thousand, two hundred twelve".