1101225225 has 12 divisors (see below), whose sum is σ = 1820692496. Its totient is φ = 587320080.

The previous prime is 1101225197. The next prime is 1101225233. The reversal of 1101225225 is 5225221011.

It is not a de Polignac number, because 1101225225 - 2⁵ = 1101225193 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 7341427 + ... + 7341576.

Almost surely, 2^1101225225 is an apocalyptic number.

1101225225 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

1101225225 is a deficient number, since it is larger than the sum of its proper divisors (719467271).

1101225225 is a wasteful number, since it uses less digits than its factorization.

1101225225 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14683016 (or 14683011 counting only the distinct ones).

The product of its (nonzero) digits is 400, while the sum is 21.

The square root of 1101225225 is about 33184.7137248463. The cubic root of 1101225225 is about 1032.6632385196.

Adding to 1101225225 its reverse (5225221011), we get a palindrome (6326446236).

The spelling of 1101225225 in words is "one billion, one hundred one million, two hundred twenty-five thousand, two hundred twenty-five".