12061222012 has 36 divisors (see below), whose sum is σ = 24559653384. Its totient is φ = 5167737120.

The previous prime is 12061221973. The next prime is 12061222039. The reversal of 12061222012 is 21022216021.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1196658 + ... + 1206694.

It is an arithmetic number, because the mean of its divisors is an integer number (682212594).

Almost surely, 2^12061222012 is an apocalyptic number.

It is an amenable number.

12061222012 is an abundant number, since it is smaller than the sum of its proper divisors (12498431372).

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

12061222012 is a wasteful number, since it uses less digits than its factorization.

12061222012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16186 (or 16177 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 19.

Adding to 12061222012 its reverse (21022216021), we get a palindrome (33083438033).

The spelling of 12061222012 in words is "twelve billion, sixty-one million, two hundred twenty-two thousand, twelve".