2229080821 has 8 divisors (see below), whose sum is σ = 2468019744. Its totient is φ = 1996191120.

The previous prime is 2229080803. The next prime is 2229080839. The reversal of 2229080821 is 1280809222.

It is a happy number.

2229080821 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (2229080803) and next prime (2229080839).

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 2229080821 - 2⁹ = 2229080309 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2229080881) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1511530 + ... + 1513003.

It is an arithmetic number, because the mean of its divisors is an integer number (308502468).

Almost surely, 2^2229080821 is an apocalyptic number.

It is an amenable number.

2229080821 is a deficient number, since it is larger than the sum of its proper divisors (238938923).

2229080821 is a wasteful number, since it uses less digits than its factorization.

2229080821 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3024611.

The product of its (nonzero) digits is 9216, while the sum is 34.

The square root of 2229080821 is about 47213.1424605480. The cubic root of 2229080821 is about 1306.2970268976.

The spelling of 2229080821 in words is "two billion, two hundred twenty-nine million, eighty thousand, eight hundred twenty-one".