2130212120 has 32 divisors (see below), whose sum is σ = 4947592320. Its totient is φ = 824597760.

The previous prime is 2130212111. The next prime is 2130212129. The reversal of 2130212120 is 212120312.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (2130212111) and next prime (2130212129).

It is a junction number, because it is equal to n+sod(n) for n = 2130212095 and 2130212104.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2130212129) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 857717 + ... + 860196.

It is an arithmetic number, because the mean of its divisors is an integer number (154612260).

Almost surely, 2^2130212120 is an apocalyptic number.

2130212120 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2130212120 is an abundant number, since it is smaller than the sum of its proper divisors (2817380200).

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

2130212120 is a wasteful number, since it uses less digits than its factorization.

2130212120 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1717955 (or 1717951 counting only the distinct ones).

The product of its (nonzero) digits is 48, while the sum is 14.

The square root of 2130212120 is about 46154.2210420672. The cubic root of 2130212120 is about 1286.6910608934.

Adding to 2130212120 its reverse (212120312), we get a palindrome (2342332432).

The spelling of 2130212120 in words is "two billion, one hundred thirty million, two hundred twelve thousand, one hundred twenty".