12031011212 has 48 divisors (see below), whose sum is σ = 24359940864. Its totient is φ = 5145096000.

The previous prime is 12031011211. The next prime is 12031011217. The reversal of 12031011212 is 21211013021.

It is a super-4 number, since 4×12031011212⁴ (a number of 41 digits) contains 4444 as substring.

It is not an unprimeable number, because it can be changed into a prime (12031011211) 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, 35714 + ... + 159177.

It is an arithmetic number, because the mean of its divisors is an integer number (507498768).

Almost surely, 2^12031011212 is an apocalyptic number.

It is an amenable number.

12031011212 is an abundant number, since it is smaller than the sum of its proper divisors (12328929652).

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

12031011212 is a wasteful number, since it uses less digits than its factorization.

12031011212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 194990 (or 194988 counting only the distinct ones).

The product of its (nonzero) digits is 24, while the sum is 14.

Adding to 12031011212 its reverse (21211013021), we get a palindrome (33242024233).

The spelling of 12031011212 in words is "twelve billion, thirty-one million, eleven thousand, two hundred twelve".