2215341220 has 48 divisors (see below), whose sum is σ = 4868172288. Its totient is φ = 845786880.

The previous prime is 2215341203. The next prime is 2215341221. The reversal of 2215341220 is 221435122.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 2215341191 and 2215341200.

It is not an unprimeable number, because it can be changed into a prime (2215341221) 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, 20787 + ... + 69733.

It is an arithmetic number, because the mean of its divisors is an integer number (101420256).

Almost surely, 2^2215341220 is an apocalyptic number.

2215341220 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2215341220, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2434086144).

2215341220 is an abundant number, since it is smaller than the sum of its proper divisors (2652831068).

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

2215341220 is a wasteful number, since it uses less digits than its factorization.

2215341220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 49060 (or 49058 counting only the distinct ones).

The product of its (nonzero) digits is 960, while the sum is 22.

The square root of 2215341220 is about 47067.4114435880. The cubic root of 2215341220 is about 1303.6075771320.

Adding to 2215341220 its reverse (221435122), we get a palindrome (2436776342).

The spelling of 2215341220 in words is "two billion, two hundred fifteen million, three hundred forty-one thousand, two hundred twenty".