1212063240 has 32 divisors (see below), whose sum is σ = 3636190080. Its totient is φ = 323216832.

The previous prime is 1212063217. The next prime is 1212063241. The reversal of 1212063240 is 423602121.

1212063240 is digitally balanced in base 6, because in such base it contains all the possibile digits an equal number of times.

It is not an unprimeable number, because it can be changed into a prime (1212063241) 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 7 ways as a sum of consecutive naturals, for example, 5050144 + ... + 5050383.

It is an arithmetic number, because the mean of its divisors is an integer number (113630940).

Almost surely, 2^1212063240 is an apocalyptic number.

1212063240 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1212063240 is an abundant number, since it is smaller than the sum of its proper divisors (2424126840).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1212063240 is a wasteful number, since it uses less digits than its factorization.

1212063240 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10100541 (or 10100537 counting only the distinct ones).

The product of its (nonzero) digits is 576, while the sum is 21.

The square root of 1212063240 is about 34814.6986199795. The cubic root of 1212063240 is about 1066.2075658830.

Adding to 1212063240 its reverse (423602121), we get a palindrome (1635665361).

The spelling of 1212063240 in words is "one billion, two hundred twelve million, sixty-three thousand, two hundred forty".