20021111100110 has 8 divisors (see below), whose sum is σ = 36037999980216. Its totient is φ = 8008444440040.

The previous prime is 20021111100103. The next prime is 20021111100149. The reversal of 20021111100110 is 1100111112002.

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 = 20021111100091 and 20021111100100.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1001055554996 + ... + 1001055555015.

It is an arithmetic number, because the mean of its divisors is an integer number (4504749997527).

Almost surely, 2^{20021111100110} is an apocalyptic number.

20021111100110 is a deficient number, since it is larger than the sum of its proper divisors (16016888880106).

20021111100110 is a wasteful number, since it uses less digits than its factorization.

20021111100110 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2002111110018.

The product of its (nonzero) digits is 4, while the sum is 11.

Adding to 20021111100110 its reverse (1100111112002), we get a palindrome (21121222212112).

The spelling of 20021111100110 in words is "twenty trillion, twenty-one billion, one hundred eleven million, one hundred thousand, one hundred ten".