12211022102122 has 4 divisors (see below), whose sum is σ = 18316533153186. Its totient is φ = 6105511051060.

The previous prime is 12211022102101. The next prime is 12211022102183. The reversal of 12211022102122 is 22120122011221.

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

It can be written as a sum of positive squares in only one way, i.e., 8373493902601 + 3837528199521 = 2893699^2 + 1958961^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 12211022102122.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3052755525529 + ... + 3052755525532.

Almost surely, 2^{12211022102122} is an apocalyptic number.

12211022102122 is a deficient number, since it is larger than the sum of its proper divisors (6105511051064).

12211022102122 is an equidigital number, since it uses as much as digits as its factorization.

12211022102122 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6105511051063.

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

Adding to 12211022102122 its reverse (22120122011221), we get a palindrome (34331144113343).

Subtracting 12211022102122 from its reverse (22120122011221), we obtain a palindrome (9909099909099).

The spelling of 12211022102122 in words is "twelve trillion, two hundred eleven billion, twenty-two million, one hundred two thousand, one hundred twenty-two".