21010322211 has 8 divisors (see below), whose sum is σ = 28051067904. Its totient is φ = 13988229000.

The previous prime is 21010322191. The next prime is 21010322231. The reversal of 21010322211 is 11222301012.

It is an interprime number because it is at equal distance from previous prime (21010322191) and next prime (21010322231).

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

It is not a de Polignac number, because 21010322211 - 2⁶ = 21010322147 is a prime.

It is not an unprimeable number, because it can be changed into a prime (21010322231) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4660491 + ... + 4664996.

It is an arithmetic number, because the mean of its divisors is an integer number (3506383488).

Almost surely, 2^21010322211 is an apocalyptic number.

21010322211 is a deficient number, since it is larger than the sum of its proper divisors (7040745693).

21010322211 is an equidigital number, since it uses as much as digits as its factorization.

21010322211 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9326241.

The product of its (nonzero) digits is 48, while the sum is 15.

Adding to 21010322211 its reverse (11222301012), we get a palindrome (32232623223).

The spelling of 21010322211 in words is "twenty-one billion, ten million, three hundred twenty-two thousand, two hundred eleven".