1122505121 has 8 divisors (see below), whose sum is σ = 1197895680. Its totient is φ = 1048154688.

The previous prime is 1122505079. The next prime is 1122505127. The reversal of 1122505121 is 1215052211.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1122505121 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1122505093 and 1122505102.

It is not an unprimeable number, because it can be changed into a prime (1122505127) 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, 257801 + ... + 262118.

It is an arithmetic number, because the mean of its divisors is an integer number (149736960).

Almost surely, 2^1122505121 is an apocalyptic number.

It is an amenable number.

1122505121 is a deficient number, since it is larger than the sum of its proper divisors (75390559).

1122505121 is a wasteful number, since it uses less digits than its factorization.

1122505121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 520063.

The product of its (nonzero) digits is 200, while the sum is 20.

The square root of 1122505121 is about 33503.8075597386. The cubic root of 1122505121 is about 1039.2725191668.

Adding to 1122505121 its reverse (1215052211), we get a palindrome (2337557332).

The spelling of 1122505121 in words is "one billion, one hundred twenty-two million, five hundred five thousand, one hundred twenty-one".