2221001331149 has 2 divisors, whose sum is σ = 2221001331150. Its totient is φ = 2221001331148.

The previous prime is 2221001331103. The next prime is 2221001331173. The reversal of 2221001331149 is 9411331001222.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 2215915074025 + 5086257124 = 1488595^2 + 71318^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2221001331149 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2221001331349) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1110500665574 + 1110500665575.

It is an arithmetic number, because the mean of its divisors is an integer number (1110500665575).

Almost surely, 2^{2221001331149} is an apocalyptic number.

It is an amenable number.

2221001331149 is a deficient number, since it is larger than the sum of its proper divisors (1).

2221001331149 is an equidigital number, since it uses as much as digits as its factorization.

2221001331149 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2592, while the sum is 29.

The spelling of 2221001331149 in words is "two trillion, two hundred twenty-one billion, one million, three hundred thirty-one thousand, one hundred forty-nine".