12211111221022 has 16 divisors (see below), whose sum is σ = 21136569772032. Its totient is φ = 5182524317880.

The previous prime is 12211111220993. The next prime is 12211111221031. The reversal of 12211111221022 is 22012211111221.

It is a happy number.

It is a super-2 number, since 2×12211111221022² (a number of 27 digits) contains 22 as substring.

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, 4234087054 + ... + 4234089937.

It is an arithmetic number, because the mean of its divisors is an integer number (1321035610752).

Almost surely, 2^{12211111221022} is an apocalyptic number.

12211111221022 is a deficient number, since it is larger than the sum of its proper divisors (8925458551010).

12211111221022 is a wasteful number, since it uses less digits than its factorization.

12211111221022 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8468177103.

The product of its (nonzero) digits is 64, while the sum is 19.

Adding to 12211111221022 its reverse (22012211111221), we get a palindrome (34223322332243).

The spelling of 12211111221022 in words is "twelve trillion, two hundred eleven billion, one hundred eleven million, two hundred twenty-one thousand, twenty-two".