212103022130 has 32 divisors (see below), whose sum is σ = 383854546944. Its totient is φ = 84382652736.

The previous prime is 212103022129. The next prime is 212103022147. The reversal of 212103022130 is 31220301212.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 212103022099 and 212103022108.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1291439 + ... + 1446381.

It is an arithmetic number, because the mean of its divisors is an integer number (11995454592).

Almost surely, 2^212103022130 is an apocalyptic number.

212103022130 is a deficient number, since it is larger than the sum of its proper divisors (171751524814).

212103022130 is a wasteful number, since it uses less digits than its factorization.

212103022130 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 155690.

The product of its (nonzero) digits is 144, while the sum is 17.

Adding to 212103022130 its reverse (31220301212), we get a palindrome (243323323342).

The spelling of 212103022130 in words is "two hundred twelve billion, one hundred three million, twenty-two thousand, one hundred thirty".