12011212022120 has 32 divisors (see below), whose sum is σ = 27063344500200. Its totient is φ = 4797708373248.

The previous prime is 12011212022099. The next prime is 12011212022189. The reversal of 12011212022120 is 2122021211021.

It can be written as a sum of positive squares in 4 ways, for example, as 6145312092676 + 5865899929444 = 2478974^2 + 2421962^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 211734899 + ... + 211791618.

Almost surely, 2^{12011212022120} is an apocalyptic number.

12011212022120 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12011212022120 is an abundant number, since it is smaller than the sum of its proper divisors (15052132478080).

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

12011212022120 is a wasteful number, since it uses less digits than its factorization.

12011212022120 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 423527237 (or 423527233 counting only the distinct ones).

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

Adding to 12011212022120 its reverse (2122021211021), we get a palindrome (14133233233141).

The spelling of 12011212022120 in words is "twelve trillion, eleven billion, two hundred twelve million, twenty-two thousand, one hundred twenty".