221111000002 has 8 divisors (see below), whose sum is σ = 332590363200. Its totient is φ = 110247545604.

The previous prime is 221110999981. The next prime is 221111000009. The reversal of 221111000002 is 200000111122.

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

It is not an unprimeable number, because it can be changed into a prime (221111000009) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 153976302 + ... + 153977737.

It is an arithmetic number, because the mean of its divisors is an integer number (41573795400).

Almost surely, 2^221111000002 is an apocalyptic number.

221111000002 is a deficient number, since it is larger than the sum of its proper divisors (111479363198).

221111000002 is a wasteful number, since it uses less digits than its factorization.

221111000002 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 307954400.

The product of its (nonzero) digits is 8, while the sum is 10.

Adding to 221111000002 its reverse (200000111122), we get a palindrome (421111111124).

The spelling of 221111000002 in words is "two hundred twenty-one billion, one hundred eleven million, two", and thus it is an aban number.