21233133322201 has 2 divisors, whose sum is σ = 21233133322202. Its totient is φ = 21233133322200.

The previous prime is 21233133322187. The next prime is 21233133322207. The reversal of 21233133322201 is 10222333133212.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 10937730586176 + 10295402736025 = 3307224^2 + 3208645^2 .

It is a cyclic number.

It is not a de Polignac number, because 21233133322201 - 2¹⁹ = 21233132797913 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 21233133322201.

It is not a weakly prime, because it can be changed into another prime (21233133322207) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10616566661100 + 10616566661101.

It is an arithmetic number, because the mean of its divisors is an integer number (10616566661101).

Almost surely, 2^{21233133322201} is an apocalyptic number.

It is an amenable number.

21233133322201 is a deficient number, since it is larger than the sum of its proper divisors (1).

21233133322201 is an equidigital number, since it uses as much as digits as its factorization.

21233133322201 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 7776, while the sum is 28.

Adding to 21233133322201 its reverse (10222333133212), we get a palindrome (31455466455413).

The spelling of 21233133322201 in words is "twenty-one trillion, two hundred thirty-three billion, one hundred thirty-three million, three hundred twenty-two thousand, two hundred one".