12120210021222 has 48 divisors (see below), whose sum is σ = 26421933145920. Its totient is φ = 4015267531776.

The previous prime is 12120210021217. The next prime is 12120210021281. The reversal of 12120210021222 is 22212001202121.

It is a happy number.

12120210021222 is a `hidden beast` number, since 1 + 212 + 0 + 210 + 0 + 21 + 222 = 666.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a junction number, because it is equal to n+sod(n) for n = 12120210021195 and 12120210021204.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1930548 + ... + 5288424.

It is an arithmetic number, because the mean of its divisors is an integer number (550456940540).

Almost surely, 2^{12120210021222} is an apocalyptic number.

12120210021222 is an abundant number, since it is smaller than the sum of its proper divisors (14301723124698).

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

12120210021222 is a wasteful number, since it uses less digits than its factorization.

12120210021222 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3359117 (or 3359114 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 18.

Adding to 12120210021222 its reverse (22212001202121), we get a palindrome (34332211223343).

The spelling of 12120210021222 in words is "twelve trillion, one hundred twenty billion, two hundred ten million, twenty-one thousand, two hundred twenty-two".