21223312111301 has 2 divisors, whose sum is σ = 21223312111302. Its totient is φ = 21223312111300.

The previous prime is 21223312111289. The next prime is 21223312111319. The reversal of 21223312111301 is 10311121332212.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 21223057708801 + 254402500 = 4606849^2 + 15950^2 .

It is a cyclic number.

It is not a de Polignac number, because 21223312111301 - 2⁶ = 21223312111237 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (21223312111361) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10611656055650 + 10611656055651.

It is an arithmetic number, because the mean of its divisors is an integer number (10611656055651).

Almost surely, 2^{21223312111301} is an apocalyptic number.

It is an amenable number.

21223312111301 is a deficient number, since it is larger than the sum of its proper divisors (1).

21223312111301 is an equidigital number, since it uses as much as digits as its factorization.

21223312111301 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 432, while the sum is 23.

Adding to 21223312111301 its reverse (10311121332212), we get a palindrome (31534433443513).

The spelling of 21223312111301 in words is "twenty-one trillion, two hundred twenty-three billion, three hundred twelve million, one hundred eleven thousand, three hundred one".