20012300212121 has 8 divisors (see below), whose sum is σ = 23258847704640. Its totient is φ = 16862664585168.

The previous prime is 20012300212033. The next prime is 20012300212123. The reversal of 20012300212121 is 12121200321002.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 20012300212121 - 2²⁶ = 20012233103257 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 20012300212121.

It is not an unprimeable number, because it can be changed into a prime (20012300212123) 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 7 ways as a sum of consecutive naturals, for example, 24227965946 + ... + 24227966771.

It is an arithmetic number, because the mean of its divisors is an integer number (2907355963080).

Almost surely, 2^{20012300212121} is an apocalyptic number.

It is an amenable number.

20012300212121 is a deficient number, since it is larger than the sum of its proper divisors (3246547492519).

20012300212121 is an equidigital number, since it uses as much as digits as its factorization.

20012300212121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 48455932783.

The product of its (nonzero) digits is 96, while the sum is 17.

Adding to 20012300212121 its reverse (12121200321002), we get a palindrome (32133500533123).

The spelling of 20012300212121 in words is "twenty trillion, twelve billion, three hundred million, two hundred twelve thousand, one hundred twenty-one".