12122002022212 has 48 divisors (see below), whose sum is σ = 21860263846512. Its totient is φ = 5877344309760.

The previous prime is 12122002022183. The next prime is 12122002022219. The reversal of 12122002022212 is 21222020022121.

It can be written as a sum of positive squares in 8 ways, for example, as 5117214039876 + 7004787982336 = 2262126^2 + 2646656^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 12122002022212.

It is not an unprimeable number, because it can be changed into a prime (12122002022219) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 63021978 + ... + 63214030.

It is an arithmetic number, because the mean of its divisors is an integer number (455422163469).

Almost surely, 2^{12122002022212} is an apocalyptic number.

It is an amenable number.

12122002022212 is a deficient number, since it is larger than the sum of its proper divisors (9738261824300).

12122002022212 is a wasteful number, since it uses less digits than its factorization.

12122002022212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 193528 (or 193526 counting only the distinct ones).

The product of its (nonzero) digits is 256, while the sum is 19.

Adding to 12122002022212 its reverse (21222020022121), we get a palindrome (33344022044333).

The spelling of 12122002022212 in words is "twelve trillion, one hundred twenty-two billion, two million, twenty-two thousand, two hundred twelve".