2215160020 has 12 divisors (see below), whose sum is σ = 4651836084. Its totient is φ = 886064000.

The previous prime is 2215159981. The next prime is 2215160029. The reversal of 2215160020 is 200615122.

It can be written as a sum of positive squares in 2 ways, for example, as 862244496 + 1352915524 = 29364^2 + 36782^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 2215160020.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2215160029) 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, 55378981 + ... + 55379020.

It is an arithmetic number, because the mean of its divisors is an integer number (387653007).

Almost surely, 2^2215160020 is an apocalyptic number.

2215160020 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2215160020 is an abundant number, since it is smaller than the sum of its proper divisors (2436676064).

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

2215160020 is a wasteful number, since it uses less digits than its factorization.

2215160020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 110758010 (or 110758008 counting only the distinct ones).

The product of its (nonzero) digits is 240, while the sum is 19.

The square root of 2215160020 is about 47065.4865055063. The cubic root of 2215160020 is about 1303.5720340545.

Adding to 2215160020 its reverse (200615122), we get a palindrome (2415775142).

The spelling of 2215160020 in words is "two billion, two hundred fifteen million, one hundred sixty thousand, twenty".