12001222313101 has 6 divisors (see below), whose sum is σ = 13960605547950. Its totient is φ = 10286761982616.

The previous prime is 12001222313099. The next prime is 12001222313117. The reversal of 12001222313101 is 10131322210021.

It can be written as a sum of positive squares in only one way, i.e., 7626578163876 + 4374644149225 = 2761626^2 + 2091565^2 .

It is not a de Polignac number, because 12001222313101 - 2¹ = 12001222313099 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12001222313501) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 122461452126 + ... + 122461452223.

It is an arithmetic number, because the mean of its divisors is an integer number (2326767591325).

Almost surely, 2^{12001222313101} is an apocalyptic number.

It is an amenable number.

12001222313101 is a deficient number, since it is larger than the sum of its proper divisors (1959383234849).

12001222313101 is an equidigital number, since it uses as much as digits as its factorization.

12001222313101 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 244922904363 (or 244922904356 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 19.

Adding to 12001222313101 its reverse (10131322210021), we get a palindrome (22132544523122).

The spelling of 12001222313101 in words is "twelve trillion, one billion, two hundred twenty-two million, three hundred thirteen thousand, one hundred one".