1212102103321 has 4 divisors (see below), whose sum is σ = 1227445168000. Its totient is φ = 1196759038644.

The previous prime is 1212102103307. The next prime is 1212102103357. The reversal of 1212102103321 is 1233012012121.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 1212102103321 - 2⁷ = 1212102103193 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1212102103721) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7671532221 + ... + 7671532378.

It is an arithmetic number, because the mean of its divisors is an integer number (306861292000).

Almost surely, 2^{1212102103321} is an apocalyptic number.

It is an amenable number.

1212102103321 is a deficient number, since it is larger than the sum of its proper divisors (15343064679).

1212102103321 is an equidigital number, since it uses as much as digits as its factorization.

1212102103321 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15343064678.

The product of its (nonzero) digits is 144, while the sum is 19.

Adding to 1212102103321 its reverse (1233012012121), we get a palindrome (2445114115442).

The spelling of 1212102103321 in words is "one trillion, two hundred twelve billion, one hundred two million, one hundred three thousand, three hundred twenty-one".