21122100110982 has 32 divisors (see below), whose sum is σ = 45641942260992. Its totient is φ = 6477937987104.

The previous prime is 21122100110897. The next prime is 21122100110987. The reversal of 21122100110982 is 28901100122112.

It is a super-2 number, since 2×21122100110982² (a number of 27 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (21122100110987) by changing a digit.

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 15 ways as a sum of consecutive naturals, for example, 441012138 + ... + 441060029.

It is an arithmetic number, because the mean of its divisors is an integer number (1426310695656).

Almost surely, 2^{21122100110982} is an apocalyptic number.

21122100110982 is an abundant number, since it is smaller than the sum of its proper divisors (24519842150010).

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

21122100110982 is a wasteful number, since it uses less digits than its factorization.

21122100110982 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 882072492.

The product of its (nonzero) digits is 1152, while the sum is 30.

The spelling of 21122100110982 in words is "twenty-one trillion, one hundred twenty-two billion, one hundred million, one hundred ten thousand, nine hundred eighty-two".