12211201021222 has 16 divisors (see below), whose sum is σ = 21608761254912. Its totient is φ = 5064553418760.

The previous prime is 12211201021211. The next prime is 12211201021231. The reversal of 12211201021222 is 22212010211221.

It is a super-2 number, since 2×12211201021222² (a number of 27 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 12211201021222.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 14068203508 + ... + 14068204375.

It is an arithmetic number, because the mean of its divisors is an integer number (1350547578432).

Almost surely, 2^{12211201021222} is an apocalyptic number.

12211201021222 is a deficient number, since it is larger than the sum of its proper divisors (9397560233690).

12211201021222 is a wasteful number, since it uses less digits than its factorization.

12211201021222 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28136407923.

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

Adding to 12211201021222 its reverse (22212010211221), we get a palindrome (34423211232443).

The spelling of 12211201021222 in words is "twelve trillion, two hundred eleven billion, two hundred one million, twenty-one thousand, two hundred twenty-two".