122120210212 has 144 divisors (see below), whose sum is σ = 292914824832. Its totient is φ = 43791390720.

The previous prime is 122120210197. The next prime is 122120210279. The reversal of 122120210212 is 212012021221.

It is a happy number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 9887713 + ... + 9900055.

It is an arithmetic number, because the mean of its divisors is an integer number (2034130728).

Almost surely, 2^122120210212 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 122120210212, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (146457412416).

122120210212 is an abundant number, since it is smaller than the sum of its proper divisors (170794614620).

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

122120210212 is a wasteful number, since it uses less digits than its factorization.

122120210212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12738 (or 12729 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 16.

Adding to 122120210212 its reverse (212012021221), we get a palindrome (334132231433).

The spelling of 122120210212 in words is "one hundred twenty-two billion, one hundred twenty million, two hundred ten thousand, two hundred twelve".