11112121021124 has 24 divisors (see below), whose sum is σ = 20668431551040. Its totient is φ = 5212533004704.

The previous prime is 11112121021103. The next prime is 11112121021247. The reversal of 11112121021124 is 42112012121111.

It is a junction number, because it is equal to n+sod(n) for n = 11112121021096 and 11112121021105.

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, 709759739 + ... + 709775394.

It is an arithmetic number, because the mean of its divisors is an integer number (861184647960).

Almost surely, 2^{11112121021124} is an apocalyptic number.

It is an amenable number.

11112121021124 is a deficient number, since it is larger than the sum of its proper divisors (9556310529916).

11112121021124 is a wasteful number, since it uses less digits than its factorization.

11112121021124 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1419535259 (or 1419535257 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 20.

Adding to 11112121021124 its reverse (42112012121111), we get a palindrome (53224133142235).

The spelling of 11112121021124 in words is "eleven trillion, one hundred twelve billion, one hundred twenty-one million, twenty-one thousand, one hundred twenty-four".