8222091049 has 16 divisors (see below), whose sum is σ = 8743421520. Its totient is φ = 7717006080.

The previous prime is 8222091041. The next prime is 8222091061. The reversal of 8222091049 is 9401902228.

It can be written as a sum of positive squares in 8 ways, for example, as 1777212649 + 6444878400 = 42157^2 + 80280^2 .

It is a cyclic number.

It is not a de Polignac number, because 8222091049 - 2³ = 8222091041 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (37).

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 8222090999 and 8222091017.

It is not an unprimeable number, because it can be changed into a prime (8222091041) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1470439 + ... + 1476019.

It is an arithmetic number, because the mean of its divisors is an integer number (546463845).

Almost surely, 2^8222091049 is an apocalyptic number.

It is an amenable number.

8222091049 is a deficient number, since it is larger than the sum of its proper divisors (521330471).

8222091049 is a wasteful number, since it uses less digits than its factorization.

8222091049 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7020.

The product of its (nonzero) digits is 20736, while the sum is 37.

The square root of 8222091049 is about 90675.7467518189. The cubic root of 8222091049 is about 2018.3389155329.

The spelling of 8222091049 in words is "eight billion, two hundred twenty-two million, ninety-one thousand, forty-nine".