2226715942021 has 2 divisors, whose sum is σ = 2226715942022. Its totient is φ = 2226715942020.

The previous prime is 2226715941979. The next prime is 2226715942051. The reversal of 2226715942021 is 1202495176222.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1289101368996 + 937614573025 = 1135386^2 + 968305^2 .

It is a cyclic number.

It is not a de Polignac number, because 2226715942021 - 2²¹ = 2226713844869 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2226715942051) 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, 1113357971010 + 1113357971011.

It is an arithmetic number, because the mean of its divisors is an integer number (1113357971011).

Almost surely, 2^{2226715942021} is an apocalyptic number.

It is an amenable number.

2226715942021 is a deficient number, since it is larger than the sum of its proper divisors (1).

2226715942021 is an equidigital number, since it uses as much as digits as its factorization.

2226715942021 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 241920, while the sum is 43.

The spelling of 2226715942021 in words is "two trillion, two hundred twenty-six billion, seven hundred fifteen million, nine hundred forty-two thousand, twenty-one".