1212321230 has 8 divisors (see below), whose sum is σ = 2182178232. Its totient is φ = 484928488.

The previous prime is 1212321193. The next prime is 1212321233. The reversal of 1212321230 is 321232121.

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

It is an alternating number because its digits alternate between odd and even.

It is a junction number, because it is equal to n+sod(n) for n = 1212321199 and 1212321208.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1212321233) 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, 60616052 + ... + 60616071.

It is an arithmetic number, because the mean of its divisors is an integer number (272772279).

Almost surely, 2^1212321230 is an apocalyptic number.

1212321230 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1212321230 is a deficient number, since it is larger than the sum of its proper divisors (969857002).

1212321230 is a wasteful number, since it uses less digits than its factorization.

1212321230 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 121232130.

The product of its (nonzero) digits is 144, while the sum is 17.

The square root of 1212321230 is about 34818.4036107344. The cubic root of 1212321230 is about 1066.2832086291.

Adding to 1212321230 its reverse (321232121), we get a palindrome (1533553351).

The spelling of 1212321230 in words is "one billion, two hundred twelve million, three hundred twenty-one thousand, two hundred thirty".