21333202213 has 4 divisors (see below), whose sum is σ = 22260732768. Its totient is φ = 20405671660.

The previous prime is 21333202211. The next prime is 21333202217. The reversal of 21333202213 is 31220233312.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 21333202213 - 2¹ = 21333202211 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 (21333202211) 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, 463765243 + ... + 463765288.

It is an arithmetic number, because the mean of its divisors is an integer number (5565183192).

Almost surely, 2^21333202213 is an apocalyptic number.

21333202213 is a gapful number since it is divisible by the number (23) formed by its first and last digit.

It is an amenable number.

21333202213 is a deficient number, since it is larger than the sum of its proper divisors (927530555).

21333202213 is an equidigital number, since it uses as much as digits as its factorization.

21333202213 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 927530554.

The product of its (nonzero) digits is 1296, while the sum is 22.

Adding to 21333202213 its reverse (31220233312), we get a palindrome (52553435525).

The spelling of 21333202213 in words is "twenty-one billion, three hundred thirty-three million, two hundred two thousand, two hundred thirteen".