12211022012212 has 24 divisors (see below), whose sum is σ = 21471783933600. Its totient is φ = 6076249410336.

The previous prime is 12211022012173. The next prime is 12211022012303. The reversal of 12211022012212 is 21221022011221.

It is a self number, because there is not a number n which added to its sum of digits gives 12211022012212.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 707158 + ... + 4992205.

It is an arithmetic number, because the mean of its divisors is an integer number (894657663900).

Almost surely, 2^{12211022012212} is an apocalyptic number.

It is an amenable number.

12211022012212 is a deficient number, since it is larger than the sum of its proper divisors (9260761921388).

12211022012212 is a wasteful number, since it uses less digits than its factorization.

12211022012212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5701935 (or 5701933 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 19.

Adding to 12211022012212 its reverse (21221022011221), we get a palindrome (33432044023433).

Subtracting 12211022012212 from its reverse (21221022011221), we obtain a palindrome (9009999999009).

The spelling of 12211022012212 in words is "twelve trillion, two hundred eleven billion, twenty-two million, twelve thousand, two hundred twelve".