21300122201 has 4 divisors (see below), whose sum is σ = 21303248100. Its totient is φ = 21296996304.

The previous prime is 21300122131. The next prime is 21300122231. The reversal of 21300122201 is 10222100312.

It is a happy number.

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 17968062025 + 3332060176 = 134045^2 + 57724^2 .

It is a cyclic number.

It is not a de Polignac number, because 21300122201 - 2²⁶ = 21233013337 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (21300122231) 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 3 ways as a sum of consecutive naturals, for example, 1552706 + ... + 1566363.

It is an arithmetic number, because the mean of its divisors is an integer number (5325812025).

Almost surely, 2^21300122201 is an apocalyptic number.

It is an amenable number.

21300122201 is a deficient number, since it is larger than the sum of its proper divisors (3125899).

21300122201 is an equidigital number, since it uses as much as digits as its factorization.

21300122201 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3125898.

The product of its (nonzero) digits is 48, while the sum is 14.

Adding to 21300122201 its reverse (10222100312), we get a palindrome (31522222513).

The spelling of 21300122201 in words is "twenty-one billion, three hundred million, one hundred twenty-two thousand, two hundred one".