2021212443001 has 4 divisors (see below), whose sum is σ = 2030791649104. Its totient is φ = 2011633236900.

The previous prime is 2021212442981. The next prime is 2021212443023. The reversal of 2021212443001 is 1003442121202.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 2021212443001 - 2²⁵ = 2021178888569 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2021215443001) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4789602735 + ... + 4789603156.

It is an arithmetic number, because the mean of its divisors is an integer number (507697912276).

Almost surely, 2^{2021212443001} is an apocalyptic number.

It is an amenable number.

2021212443001 is a deficient number, since it is larger than the sum of its proper divisors (9579206103).

2021212443001 is an equidigital number, since it uses as much as digits as its factorization.

2021212443001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9579206102.

The product of its (nonzero) digits is 768, while the sum is 22.

Adding to 2021212443001 its reverse (1003442121202), we get a palindrome (3024654564203).

The spelling of 2021212443001 in words is "two trillion, twenty-one billion, two hundred twelve million, four hundred forty-three thousand, one".