220101123 has 16 divisors (see below), whose sum is σ = 328801536. Its totient is φ = 129788640.

The previous prime is 220101121. The next prime is 220101131. The reversal of 220101123 is 321101022.

220101123 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 220101123 - 2¹ = 220101121 is a prime.

It is a super-2 number, since 2×220101123² = 96889008691722258, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 220101099 and 220101108.

It is not an unprimeable number, because it can be changed into a prime (220101121) 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, 88911 + ... + 91352.

It is an arithmetic number, because the mean of its divisors is an integer number (20550096).

Almost surely, 2^220101123 is an apocalyptic number.

220101123 is a deficient number, since it is larger than the sum of its proper divisors (108700413).

220101123 is a wasteful number, since it uses less digits than its factorization.

220101123 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 180314.

The product of its (nonzero) digits is 24, while the sum is 12.

The square root of 220101123 is about 14835.8054381958. The cubic root of 220101123 is about 603.7735535136.

Adding to 220101123 its reverse (321101022), we get a palindrome (541202145).

The spelling of 220101123 in words is "two hundred twenty million, one hundred one thousand, one hundred twenty-three".