12211222001111 has 16 divisors (see below), whose sum is σ = 13996327539264. Its totient is φ = 10436282486784.

The previous prime is 12211222001089. The next prime is 12211222001159. The reversal of 12211222001111 is 11110022211221.

It is a de Polignac number, because none of the positive numbers 2^k-12211222001111 is a prime.

It is a super-2 number, since 2×12211222001111² (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 12211222001111.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12211222001611) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 32014955 + ... + 32394131.

It is an arithmetic number, because the mean of its divisors is an integer number (874770471204).

Almost surely, 2^{12211222001111} is an apocalyptic number.

12211222001111 is a deficient number, since it is larger than the sum of its proper divisors (1785105538153).

12211222001111 is a wasteful number, since it uses less digits than its factorization.

12211222001111 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 392570.

The product of its (nonzero) digits is 32, while the sum is 17.

Adding to 12211222001111 its reverse (11110022211221), we get a palindrome (23321244212332).

The spelling of 12211222001111 in words is "twelve trillion, two hundred eleven billion, two hundred twenty-two million, one thousand, one hundred eleven".