221200110110 has 16 divisors (see below), whose sum is σ = 455040226656. Its totient is φ = 75840037728.

The previous prime is 221200110073. The next prime is 221200110149. The reversal of 221200110110 is 11011002122.

It is a super-2 number, since 2×221200110110² (a number of 23 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 221200110091 and 221200110100.

It is a congruent number.

It is an unprimeable number.

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, 1580000717 + ... + 1580000856.

It is an arithmetic number, because the mean of its divisors is an integer number (28440014166).

Almost surely, 2^221200110110 is an apocalyptic number.

221200110110 is an abundant number, since it is smaller than the sum of its proper divisors (233840116546).

221200110110 is a wasteful number, since it uses less digits than its factorization.

221200110110 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3160001587.

The product of its (nonzero) digits is 8, while the sum is 11.

Adding to 221200110110 its reverse (11011002122), we get a palindrome (232211112232).

The spelling of 221200110110 in words is "two hundred twenty-one billion, two hundred million, one hundred ten thousand, one hundred ten".