21213202201333 has 4 divisors (see below), whose sum is σ = 21218789037420. Its totient is φ = 21207615365248.

The previous prime is 21213202201297. The next prime is 21213202201351. The reversal of 21213202201333 is 33310220231212.

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 421262008209 + 20791940193124 = 649047^2 + 4559818^2 .

It is a cyclic number.

It is not a de Polignac number, because 21213202201333 - 2²⁹ = 21212665330421 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 21213202201298 and 21213202201307.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (21213202201133) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2793412348 + ... + 2793419941.

It is an arithmetic number, because the mean of its divisors is an integer number (5304697259355).

Almost surely, 2^{21213202201333} is an apocalyptic number.

It is an amenable number.

21213202201333 is a deficient number, since it is larger than the sum of its proper divisors (5586836087).

21213202201333 is an equidigital number, since it uses as much as digits as its factorization.

21213202201333 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5586836086.

The product of its (nonzero) digits is 2592, while the sum is 25.

Adding to 21213202201333 its reverse (33310220231212), we get a palindrome (54523422432545).

The spelling of 21213202201333 in words is "twenty-one trillion, two hundred thirteen billion, two hundred two million, two hundred one thousand, three hundred thirty-three".