2011202022161 has 2 divisors, whose sum is σ = 2011202022162. Its totient is φ = 2011202022160.

The previous prime is 2011202022149. The next prime is 2011202022211. The reversal of 2011202022161 is 1612202021102.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1966638812161 + 44563210000 = 1402369^2 + 211100^2 .

It is a cyclic number.

It is not a de Polignac number, because 2011202022161 - 2³⁸ = 1736324115217 is a prime.

It is not a weakly prime, because it can be changed into another prime (2011202052161) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1005601011080 + 1005601011081.

It is an arithmetic number, because the mean of its divisors is an integer number (1005601011081).

Almost surely, 2^{2011202022161} is an apocalyptic number.

It is an amenable number.

2011202022161 is a deficient number, since it is larger than the sum of its proper divisors (1).

2011202022161 is an equidigital number, since it uses as much as digits as its factorization.

2011202022161 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 192, while the sum is 20.

Adding to 2011202022161 its reverse (1612202021102), we get a palindrome (3623404043263).

The spelling of 2011202022161 in words is "two trillion, eleven billion, two hundred two million, twenty-two thousand, one hundred sixty-one".