221111001122 has 8 divisors (see below), whose sum is σ = 361818001872. Its totient is φ = 100505000500.

The previous prime is 221111001077. The next prime is 221111001169. The reversal of 221111001122 is 221100111122.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a zygodrome in base 10.

It is a junction number, because it is equal to n+sod(n) for n = 221111001097 and 221111001106.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5025250004 + ... + 5025250047.

It is an arithmetic number, because the mean of its divisors is an integer number (45227250234).

Almost surely, 2^221111001122 is an apocalyptic number.

221111001122 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

221111001122 is a deficient number, since it is larger than the sum of its proper divisors (140707000750).

221111001122 is a wasteful number, since it uses less digits than its factorization.

221111001122 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10050500064.

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

Adding to 221111001122 its reverse (221100111122), we get a palindrome (442211112244).

Subtracting from 221111001122 its reverse (221100111122), we obtain a square (10890000 = 3300²).

The spelling of 221111001122 in words is "two hundred twenty-one billion, one hundred eleven million, one thousand, one hundred twenty-two".