12210211222012 has 24 divisors (see below), whose sum is σ = 21531294005760. Its totient is φ = 6058414280880.

The previous prime is 12210211221947. The next prime is 12210211222039. The reversal of 12210211222012 is 21022211201221.

It is a super-2 number, since 2×12210211222012² (a number of 27 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 50995189 + ... + 51234067.

It is an arithmetic number, because the mean of its divisors is an integer number (897137250240).

Almost surely, 2^{12210211222012} is an apocalyptic number.

It is an amenable number.

12210211222012 is a deficient number, since it is larger than the sum of its proper divisors (9321082783748).

12210211222012 is a wasteful number, since it uses less digits than its factorization.

12210211222012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 336561 (or 336559 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 19.

Adding to 12210211222012 its reverse (21022211201221), we get a palindrome (33232422423233).

The spelling of 12210211222012 in words is "twelve trillion, two hundred ten billion, two hundred eleven million, two hundred twenty-two thousand, twelve".