21302022121301 has 2 divisors, whose sum is σ = 21302022121302. Its totient is φ = 21302022121300.

The previous prime is 21302022121267. The next prime is 21302022121321. The reversal of 21302022121301 is 10312122020312.

It is an a-pointer prime, because the next prime (21302022121321) can be obtained adding 21302022121301 to its sum of digits (20).

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 17151732346225 + 4150289775076 = 4141465^2 + 2037226^2 .

It is a cyclic number.

It is not a de Polignac number, because 21302022121301 - 2³⁸ = 21027144214357 is a prime.

It is a super-2 number, since 2×21302022121301² (a number of 27 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (21302022121321) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10651011060650 + 10651011060651.

It is an arithmetic number, because the mean of its divisors is an integer number (10651011060651).

Almost surely, 2^{21302022121301} is an apocalyptic number.

It is an amenable number.

21302022121301 is a deficient number, since it is larger than the sum of its proper divisors (1).

21302022121301 is an equidigital number, since it uses as much as digits as its factorization.

21302022121301 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 288, while the sum is 20.

Adding to 21302022121301 its reverse (10312122020312), we get a palindrome (31614144141613).

The spelling of 21302022121301 in words is "twenty-one trillion, three hundred two billion, twenty-two million, one hundred twenty-one thousand, three hundred one".