2021221110110 has 32 divisors (see below), whose sum is σ = 3650840512992. Its totient is φ = 805680627840.

The previous prime is 2021221110067. The next prime is 2021221110131. The reversal of 2021221110110 is 110111221202.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 9983549 + ... + 10183991.

It is an arithmetic number, because the mean of its divisors is an integer number (114088766031).

Almost surely, 2^{2021221110110} is an apocalyptic number.

2021221110110 is a deficient number, since it is larger than the sum of its proper divisors (1629619402882).

2021221110110 is a wasteful number, since it uses less digits than its factorization.

2021221110110 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 203948.

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

Adding to 2021221110110 its reverse (110111221202), we get a palindrome (2131332331312).

The spelling of 2021221110110 in words is "two trillion, twenty-one billion, two hundred twenty-one million, one hundred ten thousand, one hundred ten".