220135215 has 8 divisors (see below), whose sum is σ = 352216368. Its totient is φ = 117405440.

The previous prime is 220135211. The next prime is 220135241. The reversal of 220135215 is 512531022.

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

It is not a de Polignac number, because 220135215 - 2² = 220135211 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 220135191 and 220135200.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (220135211) 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, 7337826 + ... + 7337855.

It is an arithmetic number, because the mean of its divisors is an integer number (44027046).

Almost surely, 2^220135215 is an apocalyptic number.

220135215 is a deficient number, since it is larger than the sum of its proper divisors (132081153).

220135215 is a wasteful number, since it uses less digits than its factorization.

220135215 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14675689.

The product of its (nonzero) digits is 600, while the sum is 21.

The square root of 220135215 is about 14836.9543707595. The cubic root of 220135215 is about 603.8047252239.

Adding to 220135215 its reverse (512531022), we get a palindrome (732666237).

The spelling of 220135215 in words is "two hundred twenty million, one hundred thirty-five thousand, two hundred fifteen".