11220100169 has 2 divisors, whose sum is σ = 11220100170. Its totient is φ = 11220100168.

The previous prime is 11220100163. The next prime is 11220100217. The reversal of 11220100169 is 96100102211.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 10080160000 + 1139940169 = 100400^2 + 33763^2 .

It is a cyclic number.

It is not a de Polignac number, because 11220100169 - 2¹⁶ = 11220034633 is a prime.

It is a super-2 number, since 2×11220100169² (a number of 21 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (11220100163) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5610050084 + 5610050085.

It is an arithmetic number, because the mean of its divisors is an integer number (5610050085).

Almost surely, 2^11220100169 is an apocalyptic number.

It is an amenable number.

11220100169 is a deficient number, since it is larger than the sum of its proper divisors (1).

11220100169 is an equidigital number, since it uses as much as digits as its factorization.

11220100169 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 216, while the sum is 23.

The spelling of 11220100169 in words is "eleven billion, two hundred twenty million, one hundred thousand, one hundred sixty-nine".