12102001221122 has 4 divisors (see below), whose sum is σ = 18153001831686. Its totient is φ = 6051000610560.

The previous prime is 12102001221119. The next prime is 12102001221137. The reversal of 12102001221122 is 22112210020121.

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., 10666631892361 + 1435369328761 = 3265981^2 + 1198069^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 12102001221122.

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, 3025500305279 + ... + 3025500305282.

Almost surely, 2^{12102001221122} is an apocalyptic number.

12102001221122 is a deficient number, since it is larger than the sum of its proper divisors (6051000610564).

12102001221122 is an equidigital number, since it uses as much as digits as its factorization.

12102001221122 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6051000610563.

The product of its (nonzero) digits is 64, while the sum is 17.

Adding to 12102001221122 its reverse (22112210020121), we get a palindrome (34214211241243).

The spelling of 12102001221122 in words is "twelve trillion, one hundred two billion, one million, two hundred twenty-one thousand, one hundred twenty-two".