221111000110 has 96 divisors (see below), whose sum is σ = 543919979232. Its totient is φ = 63616331520.

The previous prime is 221111000087. The next prime is 221111000129. The reversal of 221111000110 is 11000111122.

It is a Harshad number since it is a multiple of its sum of digits (10).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 1507717 + ... + 1647856.

It is an arithmetic number, because the mean of its divisors is an integer number (5665833117).

Almost surely, 2^221111000110 is an apocalyptic number.

221111000110 is an abundant number, since it is smaller than the sum of its proper divisors (322808979122).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

221111000110 is a wasteful number, since it uses less digits than its factorization.

221111000110 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3155618 (or 3155611 counting only the distinct ones).

The product of its (nonzero) digits is 4, while the sum is 10.

Adding to 221111000110 its reverse (11000111122), we get a palindrome (232111111232).

The spelling of 221111000110 in words is "two hundred twenty-one billion, one hundred eleven million, one hundred ten", and thus it is an aban number.