12100222011021 has 32 divisors (see below), whose sum is σ = 16832514339840. Its totient is φ = 7723204070400.

The previous prime is 12100222011011. The next prime is 12100222011037. The reversal of 12100222011021 is 12011022200121.

It is not a de Polignac number, because 12100222011021 - 2⁶ = 12100222010957 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12100222011011) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 4621215 + ... + 6749523.

It is an arithmetic number, because the mean of its divisors is an integer number (526016073120).

Almost surely, 2^{12100222011021} is an apocalyptic number.

It is an amenable number.

12100222011021 is a deficient number, since it is larger than the sum of its proper divisors (4732292328819).

12100222011021 is a wasteful number, since it uses less digits than its factorization.

12100222011021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2128997.

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

Adding to 12100222011021 its reverse (12011022200121), we get a palindrome (24111244211142).

The spelling of 12100222011021 in words is "twelve trillion, one hundred billion, two hundred twenty-two million, eleven thousand, twenty-one".