1321001214229 has 2 divisors, whose sum is σ = 1321001214230. Its totient is φ = 1321001214228.

The previous prime is 1321001214193. The next prime is 1321001214241. The reversal of 1321001214229 is 9224121001231.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1320970942225 + 30272004 = 1149335^2 + 5502^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1321001214229 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 1321001214197 and 1321001214206.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1321001214259) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 660500607114 + 660500607115.

It is an arithmetic number, because the mean of its divisors is an integer number (660500607115).

Almost surely, 2^{1321001214229} is an apocalyptic number.

It is an amenable number.

1321001214229 is a deficient number, since it is larger than the sum of its proper divisors (1).

1321001214229 is an equidigital number, since it uses as much as digits as its factorization.

1321001214229 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1728, while the sum is 28.

The spelling of 1321001214229 in words is "one trillion, three hundred twenty-one billion, one million, two hundred fourteen thousand, two hundred twenty-nine".