2216131469 has 2 divisors, whose sum is σ = 2216131470. Its totient is φ = 2216131468.

The previous prime is 2216131447. The next prime is 2216131493. The reversal of 2216131469 is 9641316122.

2216131469 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1694557225 + 521574244 = 41165^2 + 22838^2 .

It is a cyclic number.

It is not a de Polignac number, because 2216131469 - 2²⁰ = 2215082893 is a prime.

It is a super-2 number, since 2×2216131469² = 9822477375784195922, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2216131439) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1108065734 + 1108065735.

It is an arithmetic number, because the mean of its divisors is an integer number (1108065735).

Almost surely, 2^2216131469 is an apocalyptic number.

It is an amenable number.

2216131469 is a deficient number, since it is larger than the sum of its proper divisors (1).

2216131469 is an equidigital number, since it uses as much as digits as its factorization.

2216131469 is an evil number, because the sum of its binary digits is even.

The product of its digits is 15552, while the sum is 35.

The square root of 2216131469 is about 47075.8055586944. The cubic root of 2216131469 is about 1303.7625648611.

The spelling of 2216131469 in words is "two billion, two hundred sixteen million, one hundred thirty-one thousand, four hundred sixty-nine".