1211257468 has 12 divisors (see below), whose sum is σ = 2120596632. Its totient is φ = 605372720.

The previous prime is 1211257457. The next prime is 1211257469. The reversal of 1211257468 is 8647521121.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1211257469) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 53155 + ... + 72442.

It is an arithmetic number, because the mean of its divisors is an integer number (176716386).

Almost surely, 2^1211257468 is an apocalyptic number.

It is an amenable number.

1211257468 is a deficient number, since it is larger than the sum of its proper divisors (909339164).

1211257468 is a wasteful number, since it uses less digits than its factorization.

1211257468 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 128012 (or 128010 counting only the distinct ones).

The product of its digits is 26880, while the sum is 37.

The square root of 1211257468 is about 34803.1243999731. The cubic root of 1211257468 is about 1065.9712441511.

Adding to 1211257468 its reverse (8647521121), we get a palindrome (9858778589).

The spelling of 1211257468 in words is "one billion, two hundred eleven million, two hundred fifty-seven thousand, four hundred sixty-eight".