1232121208 has 16 divisors (see below), whose sum is σ = 2310806880. Its totient is φ = 615906048.

The previous prime is 1232121203. The next prime is 1232121211. The reversal of 1232121208 is 8021212321.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1232121203) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 19041 + ... + 53167.

It is an arithmetic number, because the mean of its divisors is an integer number (144425430).

Almost surely, 2^1232121208 is an apocalyptic number.

It is an amenable number.

1232121208 is a deficient number, since it is larger than the sum of its proper divisors (1078685672).

1232121208 is a wasteful number, since it uses less digits than its factorization.

1232121208 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 38646 (or 38642 counting only the distinct ones).

The product of its (nonzero) digits is 384, while the sum is 22.

The square root of 1232121208 is about 35101.5841237970. The cubic root of 1232121208 is about 1072.0568373184.

Adding to 1232121208 its reverse (8021212321), we get a palindrome (9253333529).

The spelling of 1232121208 in words is "one billion, two hundred thirty-two million, one hundred twenty-one thousand, two hundred eight".