121211202122 has 8 divisors (see below), whose sum is σ = 181935564672. Its totient is φ = 60566013900.

The previous prime is 121211202097. The next prime is 121211202127. The reversal of 121211202122 is 221202112121.

121211202122 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

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 121211202122.

It is not an unprimeable number, because it can be changed into a prime (121211202127) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 19789754 + ... + 19795877.

It is an arithmetic number, because the mean of its divisors is an integer number (22741945584).

Almost surely, 2^121211202122 is an apocalyptic number.

121211202122 is a deficient number, since it is larger than the sum of its proper divisors (60724362550).

121211202122 is a wasteful number, since it uses less digits than its factorization.

121211202122 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 39587164.

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

Adding to 121211202122 its reverse (221202112121), we get a palindrome (342413314243).

Subtracting 121211202122 from its reverse (221202112121), we obtain a palindrome (99990909999).

The spelling of 121211202122 in words is "one hundred twenty-one billion, two hundred eleven million, two hundred two thousand, one hundred twenty-two".