21110110111022 has 16 divisors (see below), whose sum is σ = 32276232157680. Its totient is φ = 10352192383872.

The previous prime is 21110110111021. The next prime is 21110110111033. The reversal of 21110110111022 is 22011101101112.

It is a junction number, because it is equal to n+sod(n) for n = 21110110110988 and 21110110111006.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (21110110111021) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 206530013 + ... + 206632200.

It is an arithmetic number, because the mean of its divisors is an integer number (2017264509855).

Almost surely, 2^{21110110111022} is an apocalyptic number.

21110110111022 is a deficient number, since it is larger than the sum of its proper divisors (11166122046658).

21110110111022 is a wasteful number, since it uses less digits than its factorization.

21110110111022 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 413162707.

The product of its (nonzero) digits is 8, while the sum is 14.

Adding to 21110110111022 its reverse (22011101101112), we get a palindrome (43121211212134).

The spelling of 21110110111022 in words is "twenty-one trillion, one hundred ten billion, one hundred ten million, one hundred eleven thousand, twenty-two".