2220000123 has 16 divisors (see below), whose sum is σ = 3230067456. Its totient is φ = 1345047840.

The previous prime is 2220000113. The next prime is 2220000143. The reversal of 2220000123 is 3210000222.

It is not a de Polignac number, because 2220000123 - 2⁶ = 2220000059 is a prime.

It is a super-2 number, since 2×2220000123² = 9856801092240030258, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 2220000099 and 2220000108.

It is not an unprimeable number, because it can be changed into a prime (2220000113) 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, 129090 + ... + 145272.

It is an arithmetic number, because the mean of its divisors is an integer number (201879216).

Almost surely, 2^2220000123 is an apocalyptic number.

2220000123 is a deficient number, since it is larger than the sum of its proper divisors (1010067333).

2220000123 is a wasteful number, since it uses less digits than its factorization.

2220000123 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20354.

The product of its (nonzero) digits is 48, while the sum is 12.

The square root of 2220000123 is about 47116.8772628238. The cubic root of 2220000123 is about 1304.5207741130.

Adding to 2220000123 its reverse (3210000222), we get a palindrome (5430000345).

Subtracting 2220000123 from its reverse (3210000222), we obtain a palindrome (990000099).

The spelling of 2220000123 in words is "two billion, two hundred twenty million, one hundred twenty-three", and thus it is an aban number.