1111122101225 has 12 divisors (see below), whose sum is σ = 1437695380416. Its totient is φ = 850249955280.

The previous prime is 1111122101207. The next prime is 1111122101227. The reversal of 1111122101225 is 5221012211111.

It is not a de Polignac number, because 1111122101225 - 2¹⁰ = 1111122100201 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1111122101197 and 1111122101206.

It is not an unprimeable number, because it can be changed into a prime (1111122101227) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 966192557 + ... + 966193706.

It is an arithmetic number, because the mean of its divisors is an integer number (119807948368).

Almost surely, 2^{1111122101225} is an apocalyptic number.

It is an amenable number.

1111122101225 is a deficient number, since it is larger than the sum of its proper divisors (326573279191).

1111122101225 is a wasteful number, since it uses less digits than its factorization.

1111122101225 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1932386296 (or 1932386291 counting only the distinct ones).

The product of its (nonzero) digits is 80, while the sum is 20.

Adding to 1111122101225 its reverse (5221012211111), we get a palindrome (6332134312336).

The spelling of 1111122101225 in words is "one trillion, one hundred eleven billion, one hundred twenty-two million, one hundred one thousand, two hundred twenty-five".