12211122221102 has 32 divisors (see below), whose sum is σ = 21657674142720. Its totient is φ = 5052299021280.

The previous prime is 12211122221083. The next prime is 12211122221117. The reversal of 12211122221102 is 20112222111221.

12211122221102 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×12211122221102² (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 15 ways as a sum of consecutive naturals, for example, 1832027 + ... + 5270537.

It is an arithmetic number, because the mean of its divisors is an integer number (676802316960).

Almost surely, 2^{12211122221102} is an apocalyptic number.

12211122221102 is a deficient number, since it is larger than the sum of its proper divisors (9446551921618).

12211122221102 is a wasteful number, since it uses less digits than its factorization.

12211122221102 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3447296.

The product of its (nonzero) digits is 128, while the sum is 20.

Adding to 12211122221102 its reverse (20112222111221), we get a palindrome (32323344332323).

The spelling of 12211122221102 in words is "twelve trillion, two hundred eleven billion, one hundred twenty-two million, two hundred twenty-one thousand, one hundred two".