12100212220101 has 16 divisors (see below), whose sum is σ = 16218950444928. Its totient is φ = 8024217062400.

The previous prime is 12100212220099. The next prime is 12100212220111. The reversal of 12100212220101 is 10102221200121.

It is not a de Polignac number, because 12100212220101 - 2¹ = 12100212220099 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12100212220111) 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, 8861401 + ... + 10135326.

It is an arithmetic number, because the mean of its divisors is an integer number (1013684402808).

Almost surely, 2^{12100212220101} is an apocalyptic number.

It is an amenable number.

12100212220101 is a deficient number, since it is larger than the sum of its proper divisors (4118738224827).

12100212220101 is a wasteful number, since it uses less digits than its factorization.

12100212220101 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18997852.

The product of its (nonzero) digits is 32, while the sum is 15.

Adding to 12100212220101 its reverse (10102221200121), we get a palindrome (22202433420222).

The spelling of 12100212220101 in words is "twelve trillion, one hundred billion, two hundred twelve million, two hundred twenty thousand, one hundred one".