12011021224212 has 48 divisors (see below), whose sum is σ = 28283524980480. Its totient is φ = 3966845712768.

The previous prime is 12011021224211. The next prime is 12011021224249. The reversal of 12011021224212 is 21242212011021.

It is a super-2 number, since 2×12011021224212² (a number of 27 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12011021224211) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 70144933 + ... + 70315955.

It is an arithmetic number, because the mean of its divisors is an integer number (589240103760).

Almost surely, 2^{12011021224212} is an apocalyptic number.

12011021224212 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

12011021224212 is an abundant number, since it is smaller than the sum of its proper divisors (16272503756268).

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

12011021224212 is a wasteful number, since it uses less digits than its factorization.

12011021224212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 224832 (or 224830 counting only the distinct ones).

The product of its (nonzero) digits is 256, while the sum is 21.

Adding to 12011021224212 its reverse (21242212011021), we get a palindrome (33253233235233).

The spelling of 12011021224212 in words is "twelve trillion, eleven billion, twenty-one million, two hundred twenty-four thousand, two hundred twelve".