220220144 has 10 divisors (see below), whose sum is σ = 426676560. Its totient is φ = 110110064.

The previous prime is 220220137. The next prime is 220220149. The reversal of 220220144 is 441022022.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (220220149) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6881864 + ... + 6881895.

It is an arithmetic number, because the mean of its divisors is an integer number (42667656).

Almost surely, 2^220220144 is an apocalyptic number.

It is an amenable number.

220220144 is a deficient number, since it is larger than the sum of its proper divisors (206456416).

220220144 is a wasteful number, since it uses less digits than its factorization.

220220144 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13763767 (or 13763761 counting only the distinct ones).

The product of its (nonzero) digits is 256, while the sum is 17.

The square root of 220220144 is about 14839.8161713682. The cubic root of 220220144 is about 603.8823652904.

Adding to 220220144 its reverse (441022022), we get a palindrome (661242166).

The spelling of 220220144 in words is "two hundred twenty million, two hundred twenty thousand, one hundred forty-four".