12121002101 has 16 divisors (see below), whose sum is σ = 13744617600. Its totient is φ = 10596495168.

The previous prime is 12121002097. The next prime is 12121002107. The reversal of 12121002101 is 10120012121.

It is not a de Polignac number, because 12121002101 - 2² = 12121002097 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12121002107) 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 in 15 ways as a sum of consecutive naturals, for example, 1177760 + ... + 1188006.

It is an arithmetic number, because the mean of its divisors is an integer number (859038600).

Almost surely, 2^12121002101 is an apocalyptic number.

It is an amenable number.

12121002101 is a deficient number, since it is larger than the sum of its proper divisors (1623615499).

12121002101 is a wasteful number, since it uses less digits than its factorization.

12121002101 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15068.

The product of its (nonzero) digits is 8, while the sum is 11.

Adding to 12121002101 its reverse (10120012121), we get a palindrome (22241014222).

The spelling of 12121002101 in words is "twelve billion, one hundred twenty-one million, two thousand, one hundred one".