1212342330 has 16 divisors (see below), whose sum is σ = 2909621664. Its totient is φ = 323291280.

The previous prime is 1212342281. The next prime is 1212342331. The reversal of 1212342330 is 332432121.

It is a junction number, because it is equal to n+sod(n) for n = 1212342297 and 1212342306.

It is not an unprimeable number, because it can be changed into a prime (1212342331) 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, 20205676 + ... + 20205735.

It is an arithmetic number, because the mean of its divisors is an integer number (181851354).

Almost surely, 2^1212342330 is an apocalyptic number.

1212342330 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1212342330 is an abundant number, since it is smaller than the sum of its proper divisors (1697279334).

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

1212342330 is a wasteful number, since it uses less digits than its factorization.

1212342330 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 40411421.

The product of its (nonzero) digits is 864, while the sum is 21.

The square root of 1212342330 is about 34818.7066100968. The cubic root of 1212342330 is about 1066.2893946808.

Adding to 1212342330 its reverse (332432121), we get a palindrome (1544774451).

The spelling of 1212342330 in words is "one billion, two hundred twelve million, three hundred forty-two thousand, three hundred thirty".