1101235400225 has 12 divisors (see below), whose sum is σ = 1402438164924. Its totient is φ = 857177824320.

The previous prime is 1101235400189. The next prime is 1101235400263. The reversal of 1101235400225 is 5220045321011.

It can be written as a sum of positive squares in 6 ways, for example, as 26189919889 + 1075045480336 = 161833^2 + 1036844^2 .

It is a de Polignac number, because none of the positive numbers 2^k-1101235400225 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1101235400194 and 1101235400203.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 595261454 + ... + 595263303.

It is an arithmetic number, because the mean of its divisors is an integer number (116869847077).

Almost surely, 2^{1101235400225} is an apocalyptic number.

It is an amenable number.

1101235400225 is a deficient number, since it is larger than the sum of its proper divisors (301202764699).

1101235400225 is a wasteful number, since it uses less digits than its factorization.

1101235400225 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1190524804 (or 1190524799 counting only the distinct ones).

The product of its (nonzero) digits is 2400, while the sum is 26.

The spelling of 1101235400225 in words is "one trillion, one hundred one billion, two hundred thirty-five million, four hundred thousand, two hundred twenty-five".