12211021022012 has 48 divisors (see below), whose sum is σ = 24207607176480. Its totient is φ = 5354678016000.

The previous prime is 12211021022009. The next prime is 12211021022041. The reversal of 12211021022012 is 21022012011221.

It is a Harshad number since it is a multiple of its sum of digits (17).

It is a congruent number.

It is an unprimeable number.

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, 77390489 + ... + 77548112.

It is an arithmetic number, because the mean of its divisors is an integer number (504325149510).

Almost surely, 2^{12211021022012} is an apocalyptic number.

It is an amenable number.

12211021022012 is a deficient number, since it is larger than the sum of its proper divisors (11996586154468).

12211021022012 is a wasteful number, since it uses less digits than its factorization.

12211021022012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 154938702 (or 154938700 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 17.

Adding to 12211021022012 its reverse (21022012011221), we get a palindrome (33233033033233).

The spelling of 12211021022012 in words is "twelve trillion, two hundred eleven billion, twenty-one million, twenty-two thousand, twelve".