221010101220110 has 32 divisors (see below), whose sum is σ = 399706371228672. Its totient is φ = 87984448786080.

The previous prime is 221010101220109. The next prime is 221010101220113. The reversal of 221010101220110 is 11022101010122.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (221010101220113) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 410892167 + ... + 411429693.

It is an arithmetic number, because the mean of its divisors is an integer number (12490824100896).

Almost surely, 2^{221010101220110} is an apocalyptic number.

221010101220110 is a deficient number, since it is larger than the sum of its proper divisors (178696270008562).

221010101220110 is a wasteful number, since it uses less digits than its factorization.

221010101220110 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 732608.

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

Adding to 221010101220110 its reverse (11022101010122), we get a palindrome (232032202230232).

The spelling of 221010101220110 in words is "two hundred twenty-one trillion, ten billion, one hundred one million, two hundred twenty thousand, one hundred ten".