11001200022161 has 2 divisors, whose sum is σ = 11001200022162. Its totient is φ = 11001200022160.

The previous prime is 11001200022149. The next prime is 11001200022203. The reversal of 11001200022161 is 16122000210011.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 7904194873600 + 3097005148561 = 2811440^2 + 1759831^2 .

It is an emirp because it is prime and its reverse (16122000210011) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 11001200022161 - 2¹⁸ = 11001199760017 is a prime.

It is a super-2 number, since 2×11001200022161² (a number of 27 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (11001200025161) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5500600011080 + 5500600011081.

It is an arithmetic number, because the mean of its divisors is an integer number (5500600011081).

Almost surely, 2^{11001200022161} is an apocalyptic number.

It is an amenable number.

11001200022161 is a deficient number, since it is larger than the sum of its proper divisors (1).

11001200022161 is an equidigital number, since it uses as much as digits as its factorization.

11001200022161 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 48, while the sum is 17.

Adding to 11001200022161 its reverse (16122000210011), we get a palindrome (27123200232172).

The spelling of 11001200022161 in words is "eleven trillion, one billion, two hundred million, twenty-two thousand, one hundred sixty-one".