2021212112001 has 8 divisors (see below), whose sum is σ = 2694986621184. Its totient is φ = 1347456172080.

The previous prime is 2021212111981. The next prime is 2021212112033. The reversal of 2021212112001 is 1002112121202.

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

It is not a de Polignac number, because 2021212112001 - 2²² = 2021207917697 is a prime.

It is not an unprimeable number, because it can be changed into a prime (2021212112071) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4386321 + ... + 4825166.

It is an arithmetic number, because the mean of its divisors is an integer number (336873327648).

Almost surely, 2^{2021212112001} is an apocalyptic number.

It is an amenable number.

2021212112001 is a deficient number, since it is larger than the sum of its proper divisors (673774509183).

2021212112001 is an equidigital number, since it uses as much as digits as its factorization.

2021212112001 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9284631.

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

Adding to 2021212112001 its reverse (1002112121202), we get a palindrome (3023324233203).

The spelling of 2021212112001 in words is "two trillion, twenty-one billion, two hundred twelve million, one hundred twelve thousand, one".