212210202123 has 24 divisors (see below), whose sum is σ = 306876530688. Its totient is φ = 141311727792.

The previous prime is 212210202103. The next prime is 212210202131. The reversal of 212210202123 is 321202012212.

212210202123 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 212210202123 - 2²⁰ = 212209153547 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 212210202096 and 212210202105.

It is not an unprimeable number, because it can be changed into a prime (212210202103) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 42245190 + ... + 42250212.

It is an arithmetic number, because the mean of its divisors is an integer number (12786522112).

Almost surely, 2^212210202123 is an apocalyptic number.

212210202123 is a deficient number, since it is larger than the sum of its proper divisors (94666328565).

212210202123 is a wasteful number, since it uses less digits than its factorization.

212210202123 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9463 (or 9460 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 18.

Adding to 212210202123 its reverse (321202012212), we get a palindrome (533412214335).

The spelling of 212210202123 in words is "two hundred twelve billion, two hundred ten million, two hundred two thousand, one hundred twenty-three".