2221122001213 has 2 divisors, whose sum is σ = 2221122001214. Its totient is φ = 2221122001212.

The previous prime is 2221122001123. The next prime is 2221122001337. The reversal of 2221122001213 is 3121002211222.

Together with previous prime (2221122001123) it forms an Ormiston pair, because they use the same digits, order apart.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 2132426440089 + 88695561124 = 1460283^2 + 297818^2 .

It is a cyclic number.

It is not a de Polignac number, because 2221122001213 - 2⁹ = 2221122000701 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2221122091213) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1110561000606 + 1110561000607.

It is an arithmetic number, because the mean of its divisors is an integer number (1110561000607).

Almost surely, 2^{2221122001213} is an apocalyptic number.

It is an amenable number.

2221122001213 is a deficient number, since it is larger than the sum of its proper divisors (1).

2221122001213 is an equidigital number, since it uses as much as digits as its factorization.

2221122001213 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 192, while the sum is 19.

Adding to 2221122001213 its reverse (3121002211222), we get a palindrome (5342124212435).

The spelling of 2221122001213 in words is "two trillion, two hundred twenty-one billion, one hundred twenty-two million, one thousand, two hundred thirteen".