1225303111 has 8 divisors (see below), whose sum is σ = 1233735920. Its totient is φ = 1216881792.

The previous prime is 1225303087. The next prime is 1225303229. The reversal of 1225303111 is 1113035221.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 1225303111 - 2²⁷ = 1091085383 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1225303811) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 368191 + ... + 371503.

It is an arithmetic number, because the mean of its divisors is an integer number (154216990).

Almost surely, 2^1225303111 is an apocalyptic number.

1225303111 is a deficient number, since it is larger than the sum of its proper divisors (8432809).

1225303111 is a wasteful number, since it uses less digits than its factorization.

1225303111 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5745.

The product of its (nonzero) digits is 180, while the sum is 19.

The square root of 1225303111 is about 35004.3298893151. The cubic root of 1225303111 is about 1070.0757249811.

Adding to 1225303111 its reverse (1113035221), we get a palindrome (2338338332).

The spelling of 1225303111 in words is "one billion, two hundred twenty-five million, three hundred three thousand, one hundred eleven".