21330211301 has 32 divisors (see below), whose sum is σ = 25553802240. Its totient is φ = 17426313216.

The previous prime is 21330211277. The next prime is 21330211303. The reversal of 21330211301 is 10311203312.

It is a cyclic number.

It is not a de Polignac number, because 21330211301 - 2¹⁰ = 21330210277 is a prime.

It is a super-2 number, since 2×21330211301² (a number of 21 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 21330211301.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (21330211303) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 2384405 + ... + 2393333.

It is an arithmetic number, because the mean of its divisors is an integer number (798556320).

Almost surely, 2^21330211301 is an apocalyptic number.

It is an amenable number.

21330211301 is a deficient number, since it is larger than the sum of its proper divisors (4223590939).

21330211301 is a wasteful number, since it uses less digits than its factorization.

21330211301 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9173.

The product of its (nonzero) digits is 108, while the sum is 17.

Adding to 21330211301 its reverse (10311203312), we get a palindrome (31641414613).

The spelling of 21330211301 in words is "twenty-one billion, three hundred thirty million, two hundred eleven thousand, three hundred one".