220641124 has 24 divisors (see below), whose sum is σ = 430190208. Its totient is φ = 98156640.

The previous prime is 220641121. The next prime is 220641133. The reversal of 220641124 is 421146022.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (22).

It is a junction number, because it is equal to n+sod(n) for n = 220641095 and 220641104.

It is not an unprimeable number, because it can be changed into a prime (220641121) 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, 51279 + ... + 55414.

It is an arithmetic number, because the mean of its divisors is an integer number (17924592).

Almost surely, 2^220641124 is an apocalyptic number.

It is an amenable number.

220641124 is a deficient number, since it is larger than the sum of its proper divisors (209549084).

220641124 is a wasteful number, since it uses less digits than its factorization.

220641124 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 106755 (or 106753 counting only the distinct ones).

The product of its (nonzero) digits is 768, while the sum is 22.

The square root of 220641124 is about 14853.9935370930. The cubic root of 220641124 is about 604.2669207509.

Adding to 220641124 its reverse (421146022), we get a palindrome (641787146).

The spelling of 220641124 in words is "two hundred twenty million, six hundred forty-one thousand, one hundred twenty-four".