1212014321 has 16 divisors (see below), whose sum is σ = 1402525824. Its totient is φ = 1025892864.

The previous prime is 1212014311. The next prime is 1212014327. The reversal of 1212014321 is 1234102121.

It is a cyclic number.

It is not a de Polignac number, because 1212014321 - 2⁶ = 1212014257 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 1212014321.

It is not an unprimeable number, because it can be changed into a prime (1212014327) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 353411 + ... + 356823.

It is an arithmetic number, because the mean of its divisors is an integer number (87657864).

Almost surely, 2^1212014321 is an apocalyptic number.

It is an amenable number.

1212014321 is a deficient number, since it is larger than the sum of its proper divisors (190511503).

1212014321 is an equidigital number, since it uses as much as digits as its factorization.

1212014321 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4040.

The product of its (nonzero) digits is 96, while the sum is 17.

The square root of 1212014321 is about 34813.9960504393. The cubic root of 1212014321 is about 1066.1932216068.

Adding to 1212014321 its reverse (1234102121), we get a palindrome (2446116442).

The spelling of 1212014321 in words is "one billion, two hundred twelve million, fourteen thousand, three hundred twenty-one".