20021100110110 has 16 divisors (see below), whose sum is σ = 39314160216432. Its totient is φ = 7280400040000.

The previous prime is 20021100110107. The next prime is 20021100110149. The reversal of 20021100110110 is 1101100112002.

It is a Harshad number since it is a multiple of its sum of digits (10).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 91005000391 + ... + 91005000610.

It is an arithmetic number, because the mean of its divisors is an integer number (2457135013527).

Almost surely, 2^{20021100110110} is an apocalyptic number.

20021100110110 is a deficient number, since it is larger than the sum of its proper divisors (19293060106322).

20021100110110 is a wasteful number, since it uses less digits than its factorization.

20021100110110 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 182010001019.

The product of its (nonzero) digits is 4, while the sum is 10.

Adding to 20021100110110 its reverse (1101100112002), we get a palindrome (21122200222112).

The spelling of 20021100110110 in words is "twenty trillion, twenty-one billion, one hundred million, one hundred ten thousand, one hundred ten".