12211102102 has 4 divisors (see below), whose sum is σ = 18316653156. Its totient is φ = 6105551050.

The previous prime is 12211102073. The next prime is 12211102103. The reversal of 12211102102 is 20120111221.

It is a semiprime because it is the product of two primes.

It is a super-2 number, since 2×12211102102² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12211102103) by changing a digit.

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 as a sum of consecutive naturals, namely, 3052775524 + ... + 3052775527.

It is an arithmetic number, because the mean of its divisors is an integer number (4579163289).

Almost surely, 2^12211102102 is an apocalyptic number.

12211102102 is a deficient number, since it is larger than the sum of its proper divisors (6105551054).

12211102102 is an equidigital number, since it uses as much as digits as its factorization.

12211102102 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6105551053.

The product of its (nonzero) digits is 16, while the sum is 13.

Adding to 12211102102 its reverse (20120111221), we get a palindrome (32331213323).

It can be divided in two parts, 122 and 11102102, that added together give a square (11102224 = 3332²).

The spelling of 12211102102 in words is "twelve billion, two hundred eleven million, one hundred two thousand, one hundred two".