21100120111022 has 8 divisors (see below), whose sum is σ = 31815887916672. Its totient is φ = 10494824138800.

The previous prime is 21100120111013. The next prime is 21100120111027. The reversal of 21100120111022 is 22011102100112.

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

It is a junction number, because it is equal to n+sod(n) for n = 21100120110988 and 21100120111006.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (21100120111027) 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 3 ways as a sum of consecutive naturals, for example, 27617957879 + ... + 27617958642.

It is an arithmetic number, because the mean of its divisors is an integer number (3976985989584).

Almost surely, 2^{21100120111022} is an apocalyptic number.

21100120111022 is a deficient number, since it is larger than the sum of its proper divisors (10715767805650).

21100120111022 is a wasteful number, since it uses less digits than its factorization.

21100120111022 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 55235916714.

The product of its (nonzero) digits is 16, while the sum is 14.

Adding to 21100120111022 its reverse (22011102100112), we get a palindrome (43111222211134).

The spelling of 21100120111022 in words is "twenty-one trillion, one hundred billion, one hundred twenty million, one hundred eleven thousand, twenty-two".