12212100201212 has 12 divisors (see below), whose sum is σ = 21628659393096. Its totient is φ = 6032483231760.

The previous prime is 12212100201211. The next prime is 12212100201241. The reversal of 12212100201212 is 21210200121221.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12212100201211) 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, 18391716839 + ... + 18391717502.

It is an arithmetic number, because the mean of its divisors is an integer number (1802388282758).

Almost surely, 2^{12212100201212} is an apocalyptic number.

It is an amenable number.

12212100201212 is a deficient number, since it is larger than the sum of its proper divisors (9416559191884).

12212100201212 is a wasteful number, since it uses less digits than its factorization.

12212100201212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 36783434428 (or 36783434426 counting only the distinct ones).

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

Adding to 12212100201212 its reverse (21210200121221), we get a palindrome (33422300322433).

The spelling of 12212100201212 in words is "twelve trillion, two hundred twelve billion, one hundred million, two hundred one thousand, two hundred twelve".