33113121225 has 48 divisors (see below), whose sum is σ = 55171385472. Its totient is φ = 17523855360.

The previous prime is 33113121187. The next prime is 33113121253. The reversal of 33113121225 is 52212131133.

It is a happy number.

It is not a de Polignac number, because 33113121225 - 2¹⁴ = 33113104841 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 33113121195 and 33113121204.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 7484364 + ... + 7488786.

It is an arithmetic number, because the mean of its divisors is an integer number (1149403864).

Almost surely, 2^33113121225 is an apocalyptic number.

It is an amenable number.

33113121225 is a deficient number, since it is larger than the sum of its proper divisors (22058264247).

33113121225 is a wasteful number, since it uses less digits than its factorization.

33113121225 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5186 (or 5181 counting only the distinct ones).

The product of its digits is 1080, while the sum is 24.

Adding to 33113121225 its reverse (52212131133), we get a palindrome (85325252358).

The spelling of 33113121225 in words is "thirty-three billion, one hundred thirteen million, one hundred twenty-one thousand, two hundred twenty-five".