210001323122 has 4 divisors (see below), whose sum is σ = 315001984686. Its totient is φ = 105000661560.

The previous prime is 210001323043. The next prime is 210001323137. The reversal of 210001323122 is 221323100012.

210001323122 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 200212397401 + 9788925721 = 447451^2 + 98939^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 210001323122.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 52500330779 + ... + 52500330782.

Almost surely, 2^210001323122 is an apocalyptic number.

210001323122 is a deficient number, since it is larger than the sum of its proper divisors (105000661564).

210001323122 is a wasteful number, since it uses less digits than its factorization.

210001323122 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 105000661563.

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

Adding to 210001323122 its reverse (221323100012), we get a palindrome (431324423134).

The spelling of 210001323122 in words is "two hundred ten billion, one million, three hundred twenty-three thousand, one hundred twenty-two".