21102221132310 has 64 divisors (see below), whose sum is σ = 56446808256000. Its totient is φ = 5017494062592.

The previous prime is 21102221132243. The next prime is 21102221132347. The reversal of 21102221132310 is 1323112220112.

It is a super-2 number, since 2×21102221132310² (a number of 27 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

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, 1088856210 + ... + 1088875589.

It is an arithmetic number, because the mean of its divisors is an integer number (881981379000).

Almost surely, 2^{21102221132310} is an apocalyptic number.

21102221132310 is an abundant number, since it is smaller than the sum of its proper divisors (35344587123690).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

21102221132310 is a wasteful number, since it uses less digits than its factorization.

21102221132310 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2177731845.

The product of its (nonzero) digits is 288, while the sum is 21.

Adding to 21102221132310 its reverse (1323112220112), we get a palindrome (22425333352422).

The spelling of 21102221132310 in words is "twenty-one trillion, one hundred two billion, two hundred twenty-one million, one hundred thirty-two thousand, three hundred ten".