12211072076 has 24 divisors (see below), whose sum is σ = 25707521280. Its totient is φ = 4957878672.

The previous prime is 12211072067. The next prime is 12211072087. The reversal of 12211072076 is 67027011221.

It is a super-2 number, since 2×12211072076² (a number of 21 digits) contains 22 as substring.

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, 11476040 + ... + 11477103.

It is an arithmetic number, because the mean of its divisors is an integer number (1071146720).

Almost surely, 2^12211072076 is an apocalyptic number.

It is an amenable number.

12211072076 is an abundant number, since it is smaller than the sum of its proper divisors (13496449204).

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

12211072076 is a wasteful number, since it uses less digits than its factorization.

12211072076 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22953173 (or 22953171 counting only the distinct ones).

The product of its (nonzero) digits is 2352, while the sum is 29.

Adding to 12211072076 its reverse (67027011221), we get a palindrome (79238083297).

The spelling of 12211072076 in words is "twelve billion, two hundred eleven million, seventy-two thousand, seventy-six".