2130123222 has 24 divisors (see below), whose sum is σ = 4886753976. Its totient is φ = 668273856.

The previous prime is 2130123217. The next prime is 2130123251. The reversal of 2130123222 is 2223210312.

It is a super-2 number, since 2×2130123222² = 9074849881807322568, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a junction number, because it is equal to n+sod(n) for n = 2130123195 and 2130123204.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 3480288 + ... + 3480899.

It is an arithmetic number, because the mean of its divisors is an integer number (203614749).

Almost surely, 2^2130123222 is an apocalyptic number.

2130123222 is an abundant number, since it is smaller than the sum of its proper divisors (2756630754).

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

2130123222 is a wasteful number, since it uses less digits than its factorization.

2130123222 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6961212 (or 6961209 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 18.

The square root of 2130123222 is about 46153.2579781753. The cubic root of 2130123222 is about 1286.6731619164.

Adding to 2130123222 its reverse (2223210312), we get a palindrome (4353333534).

The spelling of 2130123222 in words is "two billion, one hundred thirty million, one hundred twenty-three thousand, two hundred twenty-two".