220124505 has 16 divisors (see below), whose sum is σ = 352445184. Its totient is φ = 117317760.

The previous prime is 220124503. The next prime is 220124533. The reversal of 220124505 is 505421022.

It is a happy number.

It is not a de Polignac number, because 220124505 - 2¹ = 220124503 is a prime.

It is not an unprimeable number, because it can be changed into a prime (220124503) 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, 21552 + ... + 30078.

It is an arithmetic number, because the mean of its divisors is an integer number (22027824).

Almost surely, 2^220124505 is an apocalyptic number.

It is an amenable number.

220124505 is a deficient number, since it is larger than the sum of its proper divisors (132320679).

220124505 is a wasteful number, since it uses less digits than its factorization.

220124505 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10256.

The product of its (nonzero) digits is 800, while the sum is 21.

The square root of 220124505 is about 14836.5934432403. The cubic root of 220124505 is about 603.7949329795.

Adding to 220124505 its reverse (505421022), we get a palindrome (725545527).

The spelling of 220124505 in words is "two hundred twenty million, one hundred twenty-four thousand, five hundred five".