220120124 has 24 divisors (see below), whose sum is σ = 441221088. Its totient is φ = 94127040.

The previous prime is 220120081. The next prime is 220120127. The reversal of 220120124 is 421021022.

220120124 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (14).

It is a junction number, because it is equal to n+sod(n) for n = 220120099 and 220120108.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (220120127) 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, 4382 + ... + 21434.

It is an arithmetic number, because the mean of its divisors is an integer number (18384212).

Almost surely, 2^220120124 is an apocalyptic number.

It is an amenable number.

220120124 is an abundant number, since it is smaller than the sum of its proper divisors (221100964).

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

220120124 is a wasteful number, since it uses less digits than its factorization.

220120124 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17525 (or 17523 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 14.

The square root of 220120124 is about 14836.4458007974. The cubic root of 220120124 is about 603.7909273023.

Adding to 220120124 its reverse (421021022), we get a palindrome (641141146).

The spelling of 220120124 in words is "two hundred twenty million, one hundred twenty thousand, one hundred twenty-four".