20021102111110 has 8 divisors (see below), whose sum is σ = 36037983800016. Its totient is φ = 8008440844440.

The previous prime is 20021102111099. The next prime is 20021102111117. The reversal of 20021102111110 is 1111120112002.

It is a happy number.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20021102111117) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1001055105546 + ... + 1001055105565.

It is an arithmetic number, because the mean of its divisors is an integer number (4504747975002).

Almost surely, 2^{20021102111110} is an apocalyptic number.

20021102111110 is a deficient number, since it is larger than the sum of its proper divisors (16016881688906).

20021102111110 is a wasteful number, since it uses less digits than its factorization.

20021102111110 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2002110211118.

The product of its (nonzero) digits is 8, while the sum is 13.

Adding to 20021102111110 its reverse (1111120112002), we get a palindrome (21132222223112).

The spelling of 20021102111110 in words is "twenty trillion, twenty-one billion, one hundred two million, one hundred eleven thousand, one hundred ten".