213122101333 has 4 divisors (see below), whose sum is σ = 220471139340. Its totient is φ = 205773063328.

The previous prime is 213122101321. The next prime is 213122101343. The reversal of 213122101333 is 333101221312.

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 78244397284 + 134877704049 = 279722^2 + 367257^2 .

It is a cyclic number.

It is not a de Polignac number, because 213122101333 - 2²⁹ = 212585230421 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (213122101303) 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, 3674518960 + ... + 3674519017.

It is an arithmetic number, because the mean of its divisors is an integer number (55117784835).

Almost surely, 2^213122101333 is an apocalyptic number.

It is an amenable number.

213122101333 is a deficient number, since it is larger than the sum of its proper divisors (7349038007).

213122101333 is an equidigital number, since it uses as much as digits as its factorization.

213122101333 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7349038006.

The product of its (nonzero) digits is 648, while the sum is 22.

Adding to 213122101333 its reverse (333101221312), we get a palindrome (546223322645).

The spelling of 213122101333 in words is "two hundred thirteen billion, one hundred twenty-two million, one hundred one thousand, three hundred thirty-three".