20021221101110 has 8 divisors (see below), whose sum is σ = 36038197982016. Its totient is φ = 8008488440440.

The previous prime is 20021221101071. The next prime is 20021221101169. The reversal of 20021221101110 is 1110112212002.

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

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, 1001061055046 + ... + 1001061055065.

It is an arithmetic number, because the mean of its divisors is an integer number (4504774747752).

Almost surely, 2^{20021221101110} is an apocalyptic number.

20021221101110 is a deficient number, since it is larger than the sum of its proper divisors (16016976880906).

20021221101110 is a wasteful number, since it uses less digits than its factorization.

20021221101110 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2002122110118.

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

Adding to 20021221101110 its reverse (1110112212002), we get a palindrome (21131333313112).

The spelling of 20021221101110 in words is "twenty trillion, twenty-one billion, two hundred twenty-one million, one hundred one thousand, one hundred ten".