212102323030 has 16 divisors (see below), whose sum is σ = 411152195664. Its totient is φ = 78314703840.

The previous prime is 212102322953. The next prime is 212102323087. The reversal of 212102323030 is 30323201212.

It is a junction number, because it is equal to n+sod(n) for n = 212102322989 and 212102323007.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 815778036 + ... + 815778295.

It is an arithmetic number, because the mean of its divisors is an integer number (25697012229).

Almost surely, 2^212102323030 is an apocalyptic number.

212102323030 is a deficient number, since it is larger than the sum of its proper divisors (199049872634).

212102323030 is a wasteful number, since it uses less digits than its factorization.

212102323030 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1631556351.

The product of its (nonzero) digits is 432, while the sum is 19.

Adding to 212102323030 its reverse (30323201212), we get a palindrome (242425524242).

The spelling of 212102323030 in words is "two hundred twelve billion, one hundred two million, three hundred twenty-three thousand, thirty".