220123016 has 8 divisors (see below), whose sum is σ = 412730670. Its totient is φ = 110061504.

The previous prime is 220122997. The next prime is 220123031. The reversal of 220123016 is 610321022.

It can be written as a sum of positive squares in only one way, i.e., 139948900 + 80174116 = 11830^2 + 8954^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is a junction number, because it is equal to n+sod(n) for n = 220122985 and 220123003.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 13757681 + ... + 13757696.

Almost surely, 2^220123016 is an apocalyptic number.

It is an amenable number.

220123016 is a deficient number, since it is larger than the sum of its proper divisors (192607654).

220123016 is a wasteful number, since it uses less digits than its factorization.

220123016 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 27515383 (or 27515379 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 17.

The square root of 220123016 is about 14836.5432631729. The cubic root of 220123016 is about 603.7935715489.

Adding to 220123016 its reverse (610321022), we get a palindrome (830444038).

The spelling of 220123016 in words is "two hundred twenty million, one hundred twenty-three thousand, sixteen".