210212133122 has 4 divisors (see below), whose sum is σ = 315318199686. Its totient is φ = 105106066560.

The previous prime is 210212133017. The next prime is 210212133127. The reversal of 210212133122 is 221331212012.

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., 179929520761 + 30282612361 = 424181^2 + 174019^2 .

It is a junction number, because it is equal to n+sod(n) for n = 210212133094 and 210212133103.

It is not an unprimeable number, because it can be changed into a prime (210212133127) by changing a digit.

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 as a sum of consecutive naturals, namely, 52553033279 + ... + 52553033282.

Almost surely, 2^210212133122 is an apocalyptic number.

210212133122 is a deficient number, since it is larger than the sum of its proper divisors (105106066564).

210212133122 is a wasteful number, since it uses less digits than its factorization.

210212133122 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 105106066563.

The product of its (nonzero) digits is 288, while the sum is 20.

Adding to 210212133122 its reverse (221331212012), we get a palindrome (431543345134).

The spelling of 210212133122 in words is "two hundred ten billion, two hundred twelve million, one hundred thirty-three thousand, one hundred twenty-two".