111001110021102 has 128 divisors (see below), whose sum is σ = 259224040571904. Its totient is φ = 31033336578048.

The previous prime is 111001110021077. The next prime is 111001110021149. The reversal of 111001110021102 is 201120011100111.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 712733413 + ... + 712889135.

It is an arithmetic number, because the mean of its divisors is an integer number (2025187816968).

Almost surely, 2^{111001110021102} is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 111001110021102, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (129612020285952).

111001110021102 is an abundant number, since it is smaller than the sum of its proper divisors (148222930550802).

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

111001110021102 is a wasteful number, since it uses less digits than its factorization.

111001110021102 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 157642.

The product of its (nonzero) digits is 4, while the sum is 12.

Adding to 111001110021102 its reverse (201120011100111), we get a palindrome (312121121121213).

The spelling of 111001110021102 in words is "one hundred eleven trillion, one billion, one hundred ten million, twenty-one thousand, one hundred two".