12121001102223 has 32 divisors (see below), whose sum is σ = 19340808166400. Its totient is φ = 7458129196128.

The previous prime is 12121001102219. The next prime is 12121001102251. The reversal of 12121001102223 is 32220110012121.

12121001102223 is a `hidden beast` number, since 121 + 210 + 0 + 110 + 2 + 223 = 666.

It is not a de Polignac number, because 12121001102223 - 2² = 12121001102219 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 12121001102196 and 12121001102205.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12121001102923) by changing a digit.

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 in 31 ways as a sum of consecutive naturals, for example, 574086 + ... + 4956972.

It is an arithmetic number, because the mean of its divisors is an integer number (604400255200).

Almost surely, 2^{12121001102223} is an apocalyptic number.

12121001102223 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

12121001102223 is a deficient number, since it is larger than the sum of its proper divisors (7219807064177).

12121001102223 is a wasteful number, since it uses less digits than its factorization.

12121001102223 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4390788 (or 4390782 counting only the distinct ones).

The product of its (nonzero) digits is 96, while the sum is 18.

Adding to 12121001102223 its reverse (32220110012121), we get a palindrome (44341111114344).

The spelling of 12121001102223 in words is "twelve trillion, one hundred twenty-one billion, one million, one hundred two thousand, two hundred twenty-three".