2180221298 has 8 divisors (see below), whose sum is σ = 3278740140. Its totient is φ = 1087307920.

The previous prime is 2180221297. The next prime is 2180221301. The reversal of 2180221298 is 8921220812.

It can be written as a sum of positive squares in 2 ways, for example, as 2169416929 + 10804369 = 46577^2 + 3287^2 .

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

It is not an unprimeable number, because it can be changed into a prime (2180221297) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1400393 + ... + 1401948.

Almost surely, 2^2180221298 is an apocalyptic number.

2180221298 is a deficient number, since it is larger than the sum of its proper divisors (1098518842).

2180221298 is a wasteful number, since it uses less digits than its factorization.

2180221298 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2802732.

The product of its (nonzero) digits is 9216, while the sum is 35.

The square root of 2180221298 is about 46692.8399007814. The cubic root of 2180221298 is about 1296.6821306353.

The spelling of 2180221298 in words is "two billion, one hundred eighty million, two hundred twenty-one thousand, two hundred ninety-eight".