1111711225872 has 80 divisors (see below), whose sum is σ = 3098274197760. Its totient is φ = 341463714816.

The previous prime is 1111711225837. The next prime is 1111711225873. The reversal of 1111711225872 is 2785221171111.

It is a Harshad number since it is a multiple of its sum of digits (39).

It is a self number, because there is not a number n which added to its sum of digits gives 1111711225872.

It is not an unprimeable number, because it can be changed into a prime (1111711225873) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1210488 + ... + 1920599.

It is an arithmetic number, because the mean of its divisors is an integer number (38728427472).

Almost surely, 2^{1111711225872} is an apocalyptic number.

1111711225872 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

1111711225872 is an abundant number, since it is smaller than the sum of its proper divisors (1986562971888).

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

1111711225872 is a wasteful number, since it uses less digits than its factorization.

1111711225872 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3131680 (or 3131674 counting only the distinct ones).

The product of its digits is 15680, while the sum is 39.

Adding to 1111711225872 its reverse (2785221171111), we get a palindrome (3896932396983).

The spelling of 1111711225872 in words is "one trillion, one hundred eleven billion, seven hundred eleven million, two hundred twenty-five thousand, eight hundred seventy-two".