21322021001101 has 4 divisors (see below), whose sum is σ = 21383115617500. Its totient is φ = 21260926384704.

The previous prime is 21322021001033. The next prime is 21322021001243. The reversal of 21322021001101 is 10110012022312.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 18724218468201 + 2597802532900 = 4327149^2 + 1611770^2 .

It is a cyclic number.

It is not a de Polignac number, because 21322021001101 - 2⁴¹ = 19122997745549 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (21322021007101) 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, 30547307676 + ... + 30547308373.

It is an arithmetic number, because the mean of its divisors is an integer number (5345778904375).

Almost surely, 2^{21322021001101} is an apocalyptic number.

It is an amenable number.

21322021001101 is a deficient number, since it is larger than the sum of its proper divisors (61094616399).

21322021001101 is an equidigital number, since it uses as much as digits as its factorization.

21322021001101 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 61094616398.

The product of its (nonzero) digits is 48, while the sum is 16.

Adding to 21322021001101 its reverse (10110012022312), we get a palindrome (31432033023413).

The spelling of 21322021001101 in words is "twenty-one trillion, three hundred twenty-two billion, twenty-one million, one thousand, one hundred one".