121210012122 has 8 divisors (see below), whose sum is σ = 242420024256. Its totient is φ = 40403337372.

The previous prime is 121210012117. The next prime is 121210012123. The reversal of 121210012122 is 221210012121.

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

121210012122 is an admirable number.

It is not an unprimeable number, because it can be changed into a prime (121210012123) 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, 10100834338 + ... + 10100834349.

It is an arithmetic number, because the mean of its divisors is an integer number (30302503032).

Almost surely, 2^121210012122 is an apocalyptic number.

121210012122 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

121210012122 is a wasteful number, since it uses less digits than its factorization.

121210012122 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20201668692.

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

Adding to 121210012122 its reverse (221210012121), we get a palindrome (342420024243).

Subtracting 121210012122 from its reverse (221210012121), we obtain a palindrome (99999999999).

The spelling of 121210012122 in words is "one hundred twenty-one billion, two hundred ten million, twelve thousand, one hundred twenty-two".