2198816220 has 24 divisors (see below), whose sum is σ = 6156685584. Its totient is φ = 586350976.

The previous prime is 2198816219. The next prime is 2198816231. The reversal of 2198816220 is 226188912.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 18323409 + ... + 18323528.

It is an arithmetic number, because the mean of its divisors is an integer number (256528566).

Almost surely, 2^2198816220 is an apocalyptic number.

2198816220 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2198816220 is an abundant number, since it is smaller than the sum of its proper divisors (3957869364).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

2198816220 is a wasteful number, since it uses less digits than its factorization.

2198816220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 36646949 (or 36646947 counting only the distinct ones).

The product of its (nonzero) digits is 27648, while the sum is 39.

The square root of 2198816220 is about 46891.5367630450. The cubic root of 2198816220 is about 1300.3581301284.

The spelling of 2198816220 in words is "two billion, one hundred ninety-eight million, eight hundred sixteen thousand, two hundred twenty".