21202133011 has 8 divisors (see below), whose sum is σ = 22008216384. Its totient is φ = 20410840320.

The previous prime is 21202132979. The next prime is 21202133039. The reversal of 21202133011 is 11033120212.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 21202133011 - 2⁵ = 21202132979 is a prime.

It is a super-3 number, since 3×21202133011³ (a number of 32 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (21202133081) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3694750 + ... + 3700483.

It is an arithmetic number, because the mean of its divisors is an integer number (2751027048).

Almost surely, 2^21202133011 is an apocalyptic number.

21202133011 is a deficient number, since it is larger than the sum of its proper divisors (806083373).

21202133011 is an equidigital number, since it uses as much as digits as its factorization.

21202133011 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7395341.

The product of its (nonzero) digits is 72, while the sum is 16.

Adding to 21202133011 its reverse (11033120212), we get a palindrome (32235253223).

The spelling of 21202133011 in words is "twenty-one billion, two hundred two million, one hundred thirty-three thousand, eleven".