1213130222321 has 16 divisors (see below), whose sum is σ = 1291572576000. Its totient is φ = 1135492017408.

The previous prime is 1213130222309. The next prime is 1213130222323. The reversal of 1213130222321 is 1232220313121.

It is a cyclic number.

It is not a de Polignac number, because 1213130222321 - 2³⁰ = 1212056480497 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1213130222323) 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 15 ways as a sum of consecutive naturals, for example, 1978856 + ... + 2518358.

It is an arithmetic number, because the mean of its divisors is an integer number (80723286000).

Almost surely, 2^{1213130222321} is an apocalyptic number.

It is an amenable number.

1213130222321 is a deficient number, since it is larger than the sum of its proper divisors (78442353679).

1213130222321 is a wasteful number, since it uses less digits than its factorization.

1213130222321 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 540248.

The product of its (nonzero) digits is 864, while the sum is 23.

Adding to 1213130222321 its reverse (1232220313121), we get a palindrome (2445350535442).

The spelling of 1213130222321 in words is "one trillion, two hundred thirteen billion, one hundred thirty million, two hundred twenty-two thousand, three hundred twenty-one".