111021110010 has 72 divisors (see below), whose sum is σ = 306633462876. Its totient is φ = 27864115200.

The previous prime is 111021109981. The next prime is 111021110021. The reversal of 111021110010 is 10011120111.

111021110010 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 6 ways, for example, as 83011405689 + 28009704321 = 288117^2 + 167361^2 .

It is a Harshad number since it is a multiple of its sum of digits (9).

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 111021109974 and 111021110001.

It is an unprimeable number.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 2108191 + ... + 2160210.

Almost surely, 2^111021110010 is an apocalyptic number.

111021110010 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

111021110010 is an abundant number, since it is smaller than the sum of its proper divisors (195612352866).

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

111021110010 is a wasteful number, since it uses less digits than its factorization.

111021110010 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4268448 (or 4268428 counting only the distinct ones).

The product of its (nonzero) digits is 2, while the sum is 9.

Adding to 111021110010 its reverse (10011120111), we get a palindrome (121032230121).

The spelling of 111021110010 in words is "one hundred eleven billion, twenty-one million, one hundred ten thousand, ten".