21010122333001 has 4 divisors (see below), whose sum is σ = 21017072426112. Its totient is φ = 21003172239892.

The previous prime is 21010122332981. The next prime is 21010122333007. The reversal of 21010122333001 is 10033322101012.

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 21010122333001 - 2³¹ = 21007974849353 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 21010122333001.

It is not an unprimeable number, because it can be changed into a prime (21010122333007) 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 3 ways as a sum of consecutive naturals, for example, 3475042021 + ... + 3475048066.

It is an arithmetic number, because the mean of its divisors is an integer number (5254268106528).

Almost surely, 2^{21010122333001} is an apocalyptic number.

It is an amenable number.

21010122333001 is a deficient number, since it is larger than the sum of its proper divisors (6950093111).

21010122333001 is an equidigital number, since it uses as much as digits as its factorization.

21010122333001 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6950093110.

The product of its (nonzero) digits is 216, while the sum is 19.

Adding to 21010122333001 its reverse (10033322101012), we get a palindrome (31043444434013).

The spelling of 21010122333001 in words is "twenty-one trillion, ten billion, one hundred twenty-two million, three hundred thirty-three thousand, one".