1225111075 has 6 divisors (see below), whose sum is σ = 1519137764. Its totient is φ = 980088840.

The previous prime is 1225110973. The next prime is 1225111081. The reversal of 1225111075 is 5701115221.

It is not a de Polignac number, because 1225111075 - 2⁷ = 1225110947 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (25), and also a Moran number because the ratio is a prime number: 49004443 = 1225111075 / (1 + 2 + 2 + 5 + 1 + 1 + 1 + 0 + 7 + 5).

It is a Duffinian 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 5 ways as a sum of consecutive naturals, for example, 24502197 + ... + 24502246.

Almost surely, 2^1225111075 is an apocalyptic number.

1225111075 is a deficient number, since it is larger than the sum of its proper divisors (294026689).

1225111075 is an equidigital number, since it uses as much as digits as its factorization.

1225111075 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 49004453 (or 49004448 counting only the distinct ones).

The product of its (nonzero) digits is 700, while the sum is 25.

The square root of 1225111075 is about 35001.5867497461. The cubic root of 1225111075 is about 1070.0198194134.

Adding to 1225111075 its reverse (5701115221), we get a palindrome (6926226296).

The spelling of 1225111075 in words is "one billion, two hundred twenty-five million, one hundred eleven thousand, seventy-five".