111421100102 has 16 divisors (see below), whose sum is σ = 180133486512. Its totient is φ = 51383535840.

The previous prime is 111421100101. The next prime is 111421100107. The reversal of 111421100102 is 201001124111.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (111421100101) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1700024 + ... + 1764347.

It is an arithmetic number, because the mean of its divisors is an integer number (11258342907).

Almost surely, 2^111421100102 is an apocalyptic number.

111421100102 is a deficient number, since it is larger than the sum of its proper divisors (68712386410).

111421100102 is a wasteful number, since it uses less digits than its factorization.

111421100102 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3465623.

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

Adding to 111421100102 its reverse (201001124111), we get a palindrome (312422224213).

The spelling of 111421100102 in words is "one hundred eleven billion, four hundred twenty-one million, one hundred thousand, one hundred two".