221111200102 has 16 divisors (see below), whose sum is σ = 357216678000. Its totient is φ = 102040738272.

The previous prime is 221111200099. The next prime is 221111200117. The reversal of 221111200102 is 201002111122.

221111200102 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (13).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 182688 + ... + 689635.

It is an arithmetic number, because the mean of its divisors is an integer number (22326042375).

Almost surely, 2^221111200102 is an apocalyptic number.

221111200102 is a deficient number, since it is larger than the sum of its proper divisors (136105477898).

221111200102 is a wasteful number, since it uses less digits than its factorization.

221111200102 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 882087.

The product of its (nonzero) digits is 16, while the sum is 13.

Adding to 221111200102 its reverse (201002111122), we get a palindrome (422113311224).

The spelling of 221111200102 in words is "two hundred twenty-one billion, one hundred eleven million, two hundred thousand, one hundred two".