220115 has 16 divisors (see below), whose sum is σ = 318720. Its totient is φ = 142560.

The previous prime is 220063. The next prime is 220123. The reversal of 220115 is 511022.

It is not a de Polignac number, because 220115 - 2¹⁰ = 219091 is a prime.

It is a super-2 number, since 2×220115² = 96901226450, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 220096 and 220105.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 500 + ... + 830.

It is an arithmetic number, because the mean of its divisors is an integer number (19920).

2²²⁰¹¹⁵ is an apocalyptic number.

220115 is a deficient number, since it is larger than the sum of its proper divisors (98605).

220115 is a wasteful number, since it uses less digits than its factorization.

220115 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 362.

The product of its (nonzero) digits is 20, while the sum is 11.

The square root of 220115 is about 469.1641503781. The cubic root of 220115 is about 60.3786242211.

Adding to 220115 its reverse (511022), we get a palindrome (731137).

The spelling of 220115 in words is "two hundred twenty thousand, one hundred fifteen".