220115213 has 8 divisors (see below), whose sum is σ = 222683832. Its totient is φ = 217552896.

The previous prime is 220115197. The next prime is 220115227. The reversal of 220115213 is 312511022.

It is a happy number.

220115213 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 4 ways, for example, as 41705764 + 178409449 = 6458^2 + 13357^2 .

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

It is a cyclic number.

It is not a de Polignac number, because 220115213 - 2⁴ = 220115197 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 220115191 and 220115200.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (220115263) 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, 122981 + ... + 124757.

It is an arithmetic number, because the mean of its divisors is an integer number (27835479).

Almost surely, 2^220115213 is an apocalyptic number.

It is an amenable number.

220115213 is a deficient number, since it is larger than the sum of its proper divisors (2568619).

220115213 is a wasteful number, since it uses less digits than its factorization.

220115213 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3151.

The product of its (nonzero) digits is 120, while the sum is 17.

The square root of 220115213 is about 14836.2802952762. The cubic root of 220115213 is about 603.7864369672.

Adding to 220115213 its reverse (312511022), we get a palindrome (532626235).

The spelling of 220115213 in words is "two hundred twenty million, one hundred fifteen thousand, two hundred thirteen".