210211212122 has 8 divisors (see below), whose sum is σ = 315348830400. Its totient is φ = 105094935324.

The previous prime is 210211212121. The next prime is 210211212143. The reversal of 210211212122 is 221212112012.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a self number, because there is not a number n which added to its sum of digits gives 210211212122.

It is not an unprimeable number, because it can be changed into a prime (210211212121) 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 in 3 ways as a sum of consecutive naturals, for example, 5310722 + ... + 5350157.

It is an arithmetic number, because the mean of its divisors is an integer number (39418603800).

Almost surely, 2^210211212122 is an apocalyptic number.

210211212122 is a deficient number, since it is larger than the sum of its proper divisors (105137618278).

210211212122 is a wasteful number, since it uses less digits than its factorization.

210211212122 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10670740.

The product of its (nonzero) digits is 64, while the sum is 17.

Adding to 210211212122 its reverse (221212112012), we get a palindrome (431423324134).

The spelling of 210211212122 in words is "two hundred ten billion, two hundred eleven million, two hundred twelve thousand, one hundred twenty-two".