12211102012212 has 72 divisors (see below), whose sum is σ = 31155589063872. Its totient is φ = 4032426384000.

The previous prime is 12211102012157. The next prime is 12211102012231. The reversal of 12211102012212 is 21221020111221.

It is a super-2 number, since 2×12211102012212² (a number of 27 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a congruent number.

It is an unprimeable number.

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 in 23 ways as a sum of consecutive naturals, for example, 99664 + ... + 4942887.

It is an arithmetic number, because the mean of its divisors is an integer number (432716514776).

Almost surely, 2^{12211102012212} is an apocalyptic number.

12211102012212 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

12211102012212 is an abundant number, since it is smaller than the sum of its proper divisors (18944487051660).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

12211102012212 is a wasteful number, since it uses less digits than its factorization.

12211102012212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5043189 (or 5043184 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 18.

Adding to 12211102012212 its reverse (21221020111221), we get a palindrome (33432122123433).

The spelling of 12211102012212 in words is "twelve trillion, two hundred eleven billion, one hundred two million, twelve thousand, two hundred twelve".