12120021122022 has 32 divisors (see below), whose sum is σ = 29381869388160. Its totient is φ = 3672733673160.

The previous prime is 12120021121981. The next prime is 12120021122059. The reversal of 12120021122022 is 22022112002121.

It is a happy number.

12120021122022 is a `hidden beast` number, since 1 + 212 + 0 + 0 + 211 + 220 + 22 = 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 = 12120021121986 and 12120021122004.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 10202037388 + ... + 10202038575.

It is an arithmetic number, because the mean of its divisors is an integer number (918183418380).

Almost surely, 2^{12120021122022} is an apocalyptic number.

12120021122022 is an abundant number, since it is smaller than the sum of its proper divisors (17261848266138).

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

12120021122022 is a wasteful number, since it uses less digits than its factorization.

12120021122022 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20404075985 (or 20404075979 counting only the distinct ones).

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

Adding to 12120021122022 its reverse (22022112002121), we get a palindrome (34142133124143).

The spelling of 12120021122022 in words is "twelve trillion, one hundred twenty billion, twenty-one million, one hundred twenty-two thousand, twenty-two".