12212001011212 has 24 divisors (see below), whose sum is σ = 21611562270480. Its totient is φ = 6037271708160.

The previous prime is 12212001011191. The next prime is 12212001011219. The reversal of 12212001011212 is 21211010021221.

It is not an unprimeable number, because it can be changed into a prime (12212001011219) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 18765588 + ... + 19405444.

It is an arithmetic number, because the mean of its divisors is an integer number (900481761270).

Almost surely, 2^{12212001011212} is an apocalyptic number.

It is an amenable number.

12212001011212 is a deficient number, since it is larger than the sum of its proper divisors (9399561259268).

12212001011212 is a wasteful number, since it uses less digits than its factorization.

12212001011212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 693561 (or 693559 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 16.

Adding to 12212001011212 its reverse (21211010021221), we get a palindrome (33423011032433).

The spelling of 12212001011212 in words is "twelve trillion, two hundred twelve billion, one million, eleven thousand, two hundred twelve".