221111200212110 has 32 divisors (see below), whose sum is σ = 428830187560992. Its totient is φ = 81600176592000.

The previous prime is 221111200212103. The next prime is 221111200212127. The reversal of 221111200212110 is 11212002111122.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 425593016 + ... + 426112235.

It is an arithmetic number, because the mean of its divisors is an integer number (13400943361281).

Almost surely, 2^{221111200212110} is an apocalyptic number.

221111200212110 is a deficient number, since it is larger than the sum of its proper divisors (207718987348882).

221111200212110 is a wasteful number, since it uses less digits than its factorization.

221111200212110 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 851707268.

The product of its (nonzero) digits is 32, while the sum is 17.

Adding to 221111200212110 its reverse (11212002111122), we get a palindrome (232323202323232).

The spelling of 221111200212110 in words is "two hundred twenty-one trillion, one hundred eleven billion, two hundred million, two hundred twelve thousand, one hundred ten".