221116611122 has 16 divisors (see below), whose sum is σ = 364589226144. Its totient is φ = 99740316000.

The previous prime is 221116611119. The next prime is 221116611127.

It is a happy number.

221116611122 is nontrivially palindromic in base 10.

It is a zygodrome in base 10.

It is a junction number, because it is equal to n+sod(n) for n = 221116611091 and 221116611100.

It is not an unprimeable number, because it can be changed into a prime (221116611127) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 38358779 + ... + 38364542.

It is an arithmetic number, because the mean of its divisors is an integer number (22786826634).

Almost surely, 2^221116611122 is an apocalyptic number.

221116611122 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

221116611122 is a deficient number, since it is larger than the sum of its proper divisors (143472615022).

221116611122 is a wasteful number, since it uses less digits than its factorization.

221116611122 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 76723465.

The product of its digits is 576, while the sum is 26.

It can be divided in two parts, 221116 and 611122, that added together give a palindrome (832238).

The spelling of 221116611122 in words is "two hundred twenty-one billion, one hundred sixteen million, six hundred eleven thousand, one hundred twenty-two".