221122121111102 has 8 divisors (see below), whose sum is σ = 332399560030176. Its totient is φ = 110322267767712.

The previous prime is 221122121111083. The next prime is 221122121111119. The reversal of 221122121111102 is 201111121221122.

It is a happy number.

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

It is a congruent number.

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, 119396392763 + ... + 119396394614.

It is an arithmetic number, because the mean of its divisors is an integer number (41549945003772).

Almost surely, 2^{221122121111102} is an apocalyptic number.

221122121111102 is a deficient number, since it is larger than the sum of its proper divisors (111277438919074).

221122121111102 is a wasteful number, since it uses less digits than its factorization.

221122121111102 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 238792787842.

The product of its (nonzero) digits is 64, while the sum is 20.

Adding to 221122121111102 its reverse (201111121221122), we get a palindrome (422233242332224).

The spelling of 221122121111102 in words is "two hundred twenty-one trillion, one hundred twenty-two billion, one hundred twenty-one million, one hundred eleven thousand, one hundred two".