210122101212 has 12 divisors (see below), whose sum is σ = 490284902856. Its totient is φ = 70040700400.

The previous prime is 210122101193. The next prime is 210122101219. The reversal of 210122101212 is 212101221012.

It is a tau number, because it is divible by the number of its divisors (12).

It is a junction number, because it is equal to n+sod(n) for n = 210122101191 and 210122101200.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (210122101219) 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, 8755087539 + ... + 8755087562.

It is an arithmetic number, because the mean of its divisors is an integer number (40857075238).

Almost surely, 2^210122101212 is an apocalyptic number.

It is an amenable number.

210122101212 is an abundant number, since it is smaller than the sum of its proper divisors (280162801644).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

210122101212 is a wasteful number, since it uses less digits than its factorization.

210122101212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17510175108 (or 17510175106 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 15.

Adding to 210122101212 its reverse (212101221012), we get a palindrome (422223322224).

The spelling of 210122101212 in words is "two hundred ten billion, one hundred twenty-two million, one hundred one thousand, two hundred twelve".