12100300020021 has 64 divisors (see below), whose sum is σ = 16987275131904. Its totient is φ = 7652740032000.

The previous prime is 12100300019981. The next prime is 12100300020031. The reversal of 12100300020021 is 12002000300121.

It is not a de Polignac number, because 12100300020021 - 2¹⁴ = 12100300003637 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 12100300019979 and 12100300020006.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12100300020031) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 1920374571 + ... + 1920380871.

It is an arithmetic number, because the mean of its divisors is an integer number (265426173936).

Almost surely, 2^{12100300020021} is an apocalyptic number.

It is an amenable number.

12100300020021 is a deficient number, since it is larger than the sum of its proper divisors (4886975111883).

12100300020021 is a wasteful number, since it uses less digits than its factorization.

12100300020021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7954.

The product of its (nonzero) digits is 24, while the sum is 12.

Adding to 12100300020021 its reverse (12002000300121), we get a palindrome (24102300320142).

The spelling of 12100300020021 in words is "twelve trillion, one hundred billion, three hundred million, twenty thousand, twenty-one".