221102120220110 has 16 divisors (see below), whose sum is σ = 397985322478032. Its totient is φ = 88440513403200.

The previous prime is 221102120219983. The next prime is 221102120220251. The reversal of 221102120220110 is 11022021201122.

It is a super-2 number, since 2×221102120220110² (a number of 29 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 39052151 + ... + 44353970.

It is an arithmetic number, because the mean of its divisors is an integer number (24874082654877).

Almost surely, 2^{221102120220110} is an apocalyptic number.

221102120220110 is a deficient number, since it is larger than the sum of its proper divisors (176883202257922).

221102120220110 is a wasteful number, since it uses less digits than its factorization.

221102120220110 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 83671219.

The product of its (nonzero) digits is 64, while the sum is 17.

Adding to 221102120220110 its reverse (11022021201122), we get a palindrome (232124141421232).

The spelling of 221102120220110 in words is "two hundred twenty-one trillion, one hundred two billion, one hundred twenty million, two hundred twenty thousand, one hundred ten".