21322030020101 has 4 divisors (see below), whose sum is σ = 21322048130892. Its totient is φ = 21322011909312.

The previous prime is 21322030020097. The next prime is 21322030020107. The reversal of 21322030020101 is 10102003022312.

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 21222366687076 + 99663333025 = 4606774^2 + 315695^2 .

It is a cyclic number.

It is not a de Polignac number, because 21322030020101 - 2² = 21322030020097 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 21322030020101.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (21322030020107) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7156730 + ... + 9688283.

It is an arithmetic number, because the mean of its divisors is an integer number (5330512032723).

Almost surely, 2^{21322030020101} is an apocalyptic number.

It is an amenable number.

21322030020101 is a deficient number, since it is larger than the sum of its proper divisors (18110791).

21322030020101 is a wasteful number, since it uses less digits than its factorization.

21322030020101 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18110790.

The product of its (nonzero) digits is 144, while the sum is 17.

Adding to 21322030020101 its reverse (10102003022312), we get a palindrome (31424033042413).

The spelling of 21322030020101 in words is "twenty-one trillion, three hundred twenty-two billion, thirty million, twenty thousand, one hundred one".