221200120100111 has 8 divisors (see below), whose sum is σ = 227052355064448. Its totient is φ = 215419691700000.

The previous prime is 221200120100107. The next prime is 221200120100119. The reversal of 221200120100111 is 111001021002122.

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

It is a cyclic number.

It is not a de Polignac number, because 221200120100111 - 2² = 221200120100107 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (221200120100119) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 17951634815 + ... + 17951647136.

It is an arithmetic number, because the mean of its divisors is an integer number (28381544383056).

Almost surely, 2^{221200120100111} is an apocalyptic number.

221200120100111 is a deficient number, since it is larger than the sum of its proper divisors (5852234964337).

221200120100111 is a wasteful number, since it uses less digits than its factorization.

221200120100111 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 35903282113.

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

Adding to 221200120100111 its reverse (111001021002122), we get a palindrome (332201141102233).

The spelling of 221200120100111 in words is "two hundred twenty-one trillion, two hundred billion, one hundred twenty million, one hundred thousand, one hundred eleven".