12221210210012 has 12 divisors (see below), whose sum is σ = 22645183624560. Its totient is φ = 5751157745856.

The previous prime is 12221210209963. The next prime is 12221210210017. The reversal of 12221210210012 is 21001201212221.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12221210210017) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 89861839712 + ... + 89861839847.

It is an arithmetic number, because the mean of its divisors is an integer number (1887098635380).

Almost surely, 2^{12221210210012} is an apocalyptic number.

It is an amenable number.

12221210210012 is a deficient number, since it is larger than the sum of its proper divisors (10423973414548).

12221210210012 is a wasteful number, since it uses less digits than its factorization.

12221210210012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 179723679580 (or 179723679578 counting only the distinct ones).

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

Adding to 12221210210012 its reverse (21001201212221), we get a palindrome (33222411422233).

The spelling of 12221210210012 in words is "twelve trillion, two hundred twenty-one billion, two hundred ten million, two hundred ten thousand, twelve".