2123118228 has 48 divisors (see below), whose sum is σ = 6176346624. Its totient is φ = 551459040.

The previous prime is 2123118227. The next prime is 2123118269. The reversal of 2123118228 is 8228113212.

2123118228 is digitally balanced in base 4, because in such base it contains all the possibile digits an equal number of times.

It is a junction number, because it is equal to n+sod(n) for n = 2123118195 and 2123118204.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2123118223) 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, 1147950 + ... + 1149797.

It is an arithmetic number, because the mean of its divisors is an integer number (128673888).

Almost surely, 2^2123118228 is an apocalyptic number.

2123118228 is a gapful number since it is divisible by the number (28) formed by its first and last digit.

It is an amenable number.

2123118228 is an abundant number, since it is smaller than the sum of its proper divisors (4053228396).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

2123118228 is a wasteful number, since it uses less digits than its factorization.

2123118228 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2297772 (or 2297770 counting only the distinct ones).

The product of its digits is 3072, while the sum is 30.

The square root of 2123118228 is about 46077.3070827712. The cubic root of 2123118228 is about 1285.2611879054.

The spelling of 2123118228 in words is "two billion, one hundred twenty-three million, one hundred eighteen thousand, two hundred twenty-eight".