21112311032210 has 64 divisors (see below), whose sum is σ = 38516285583360. Its totient is φ = 8331122004480.

The previous prime is 21112311032173. The next prime is 21112311032257. The reversal of 21112311032210 is 1223011321112.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 940529207 + ... + 940551653.

It is an arithmetic number, because the mean of its divisors is an integer number (601816962240).

Almost surely, 2^{21112311032210} is an apocalyptic number.

21112311032210 is a deficient number, since it is larger than the sum of its proper divisors (17403974551150).

21112311032210 is a wasteful number, since it uses less digits than its factorization.

21112311032210 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24891.

The product of its (nonzero) digits is 144, while the sum is 20.

Adding to 21112311032210 its reverse (1223011321112), we get a palindrome (22335322353322).

The spelling of 21112311032210 in words is "twenty-one trillion, one hundred twelve billion, three hundred eleven million, thirty-two thousand, two hundred ten".