2212165523 has 2 divisors, whose sum is σ = 2212165524. Its totient is φ = 2212165522.

The previous prime is 2212165513. The next prime is 2212165547. The reversal of 2212165523 is 3255612122.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 2212165523 - 2¹⁰ = 2212164499 is a prime.

It is a super-2 number, since 2×2212165523² = 9787352602299727058, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (2212165513) 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, 1106082761 + 1106082762.

It is an arithmetic number, because the mean of its divisors is an integer number (1106082762).

Almost surely, 2^2212165523 is an apocalyptic number.

2212165523 is a deficient number, since it is larger than the sum of its proper divisors (1).

2212165523 is an equidigital number, since it uses as much as digits as its factorization.

2212165523 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 7200, while the sum is 29.

The square root of 2212165523 is about 47033.6637207862. The cubic root of 2212165523 is about 1302.9843710424.

Adding to 2212165523 its reverse (3255612122), we get a palindrome (5467777645).

The spelling of 2212165523 in words is "two billion, two hundred twelve million, one hundred sixty-five thousand, five hundred twenty-three".