221102111012 has 24 divisors (see below), whose sum is σ = 392032724160. Its totient is φ = 109099893600.

The previous prime is 221102110997. The next prime is 221102111023. The reversal of 221102111012 is 210111201122.

It is a super-2 number, since 2×221102111012² (a number of 23 digits) contains 22 as substring.

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, 767312 + ... + 1015367.

It is an arithmetic number, because the mean of its divisors is an integer number (16334696840).

Almost surely, 2^221102111012 is an apocalyptic number.

It is an amenable number.

221102111012 is a deficient number, since it is larger than the sum of its proper divisors (170930613148).

221102111012 is a wasteful number, since it uses less digits than its factorization.

221102111012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1783091 (or 1783089 counting only the distinct ones).

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

Adding to 221102111012 its reverse (210111201122), we get a palindrome (431213312134).

The spelling of 221102111012 in words is "two hundred twenty-one billion, one hundred two million, one hundred eleven thousand, twelve".