3122212130321 has 2 divisors, whose sum is σ = 3122212130322. Its totient is φ = 3122212130320.

The previous prime is 3122212130269. The next prime is 3122212130393. The reversal of 3122212130321 is 1230312122213.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1653510520321 + 1468701610000 = 1285889^2 + 1211900^2 .

It is a cyclic number.

It is not a de Polignac number, because 3122212130321 - 2¹⁰ = 3122212129297 is a prime.

It is not a weakly prime, because it can be changed into another prime (3122212132321) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1561106065160 + 1561106065161.

It is an arithmetic number, because the mean of its divisors is an integer number (1561106065161).

Almost surely, 2^{3122212130321} is an apocalyptic number.

It is an amenable number.

3122212130321 is a deficient number, since it is larger than the sum of its proper divisors (1).

3122212130321 is an equidigital number, since it uses as much as digits as its factorization.

3122212130321 is an evil number, because the sum of its binary digits is even.

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

Adding to 3122212130321 its reverse (1230312122213), we get a palindrome (4352524252534).

The spelling of 3122212130321 in words is "three trillion, one hundred twenty-two billion, two hundred twelve million, one hundred thirty thousand, three hundred twenty-one".