12011120212 has 48 divisors (see below), whose sum is σ = 26000262400. Its totient is φ = 4727745792.

The previous prime is 12011120201. The next prime is 12011120287. The reversal of 12011120212 is 21202111021.

It is a super-2 number, since 2×12011120212² (a number of 21 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (13).

It is a junction number, because it is equal to n+sod(n) for n = 12011120192 and 12011120201.

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, 10473 + ... + 155344.

Almost surely, 2^12011120212 is an apocalyptic number.

It is an amenable number.

12011120212 is an abundant number, since it is smaller than the sum of its proper divisors (13989142188).

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

12011120212 is a wasteful number, since it uses less digits than its factorization.

12011120212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 166040 (or 166038 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 13.

Adding to 12011120212 its reverse (21202111021), we get a palindrome (33213231233).

The spelling of 12011120212 in words is "twelve billion, eleven million, one hundred twenty thousand, two hundred twelve".