111102121010 has 16 divisors (see below), whose sum is σ = 200189791872. Its totient is φ = 44395076400.

The previous prime is 111102120991. The next prime is 111102121021. The reversal of 111102121010 is 10121201111.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 111102120982 and 111102121000.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5711306 + ... + 5730725.

It is an arithmetic number, because the mean of its divisors is an integer number (12511861992).

Almost surely, 2^111102121010 is an apocalyptic number.

111102121010 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

111102121010 is a deficient number, since it is larger than the sum of its proper divisors (89087670862).

111102121010 is a wasteful number, since it uses less digits than its factorization.

111102121010 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11443009.

The product of its (nonzero) digits is 4, while the sum is 11.

Adding to 111102121010 its reverse (10121201111), we get a palindrome (121223322121).

The spelling of 111102121010 in words is "one hundred eleven billion, one hundred two million, one hundred twenty-one thousand, ten".