2214331321261 has 2 divisors, whose sum is σ = 2214331321262. Its totient is φ = 2214331321260.

The previous prime is 2214331321109. The next prime is 2214331321289. The reversal of 2214331321261 is 1621231334122.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1602034461225 + 612296860036 = 1265715^2 + 782494^2 .

It is a cyclic number.

It is not a de Polignac number, because 2214331321261 - 2⁹ = 2214331320749 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2214331621261) 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 as a sum of consecutive naturals, namely, 1107165660630 + 1107165660631.

It is an arithmetic number, because the mean of its divisors is an integer number (1107165660631).

Almost surely, 2^{2214331321261} is an apocalyptic number.

It is an amenable number.

2214331321261 is a deficient number, since it is larger than the sum of its proper divisors (1).

2214331321261 is an equidigital number, since it uses as much as digits as its factorization.

2214331321261 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 10368, while the sum is 31.

Adding to 2214331321261 its reverse (1621231334122), we get a palindrome (3835562655383).

The spelling of 2214331321261 in words is "two trillion, two hundred fourteen billion, three hundred thirty-one million, three hundred twenty-one thousand, two hundred sixty-one".