221011102020110 has 16 divisors (see below), whose sum is σ = 398111000474016. Its totient is φ = 88339770399648.

The previous prime is 221011102020089. The next prime is 221011102020113. The reversal of 221011102020110 is 11020201110122.

It is a super-2 number, since 2×221011102020110² (a number of 29 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (221011102020113) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 8083786697 + ... + 8083814036.

It is an arithmetic number, because the mean of its divisors is an integer number (24881937529626).

Almost surely, 2^{221011102020110} is an apocalyptic number.

221011102020110 is a deficient number, since it is larger than the sum of its proper divisors (177099898453906).

221011102020110 is a wasteful number, since it uses less digits than its factorization.

221011102020110 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16167602107.

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

Adding to 221011102020110 its reverse (11020201110122), we get a palindrome (232031303130232).

The spelling of 221011102020110 in words is "two hundred twenty-one trillion, eleven billion, one hundred two million, twenty thousand, one hundred ten".