2222511566161 has 2 divisors, whose sum is σ = 2222511566162. Its totient is φ = 2222511566160.

The previous prime is 2222511566147. The next prime is 2222511566227. The reversal of 2222511566161 is 1616651152222.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1813479689025 + 409031877136 = 1346655^2 + 639556^2 .

It is a cyclic number.

It is not a de Polignac number, because 2222511566161 - 2¹⁹ = 2222511041873 is a prime.

It is not a weakly prime, because it can be changed into another prime (2222511566101) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1111255783080 + 1111255783081.

It is an arithmetic number, because the mean of its divisors is an integer number (1111255783081).

Almost surely, 2^{2222511566161} is an apocalyptic number.

It is an amenable number.

2222511566161 is a deficient number, since it is larger than the sum of its proper divisors (1).

2222511566161 is an equidigital number, since it uses as much as digits as its factorization.

2222511566161 is an evil number, because the sum of its binary digits is even.

The product of its digits is 86400, while the sum is 40.

The spelling of 2222511566161 in words is "two trillion, two hundred twenty-two billion, five hundred eleven million, five hundred sixty-six thousand, one hundred sixty-one".