221100100121110 has 32 divisors (see below), whose sum is σ = 454835084746752. Its totient is φ = 75805649768160.

The previous prime is 221100100121101. The next prime is 221100100121167. The reversal of 221100100121110 is 11121001001122.

It is a happy number.

It is a super-3 number, since 3×221100100121110³ (a number of 44 digits) contains 333 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 69785239 + ... + 72884701.

It is an arithmetic number, because the mean of its divisors is an integer number (14213596398336).

Almost surely, 2^{221100100121110} is an apocalyptic number.

221100100121110 is an abundant number, since it is smaller than the sum of its proper divisors (233734984625642).

221100100121110 is a wasteful number, since it uses less digits than its factorization.

221100100121110 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4118548.

The product of its (nonzero) digits is 8, while the sum is 13.

Adding to 221100100121110 its reverse (11121001001122), we get a palindrome (232221101122232).

The spelling of 221100100121110 in words is "two hundred twenty-one trillion, one hundred billion, one hundred million, one hundred twenty-one thousand, one hundred ten".