12220121022212 has 24 divisors (see below), whose sum is σ = 21413399784000. Its totient is φ = 6102012049056.

The previous prime is 12220121022121. The next prime is 12220121022253. The reversal of 12220121022212 is 21222012102221.

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, 8676089 + ... + 9985727.

It is an arithmetic number, because the mean of its divisors is an integer number (892224991000).

Almost surely, 2^{12220121022212} is an apocalyptic number.

It is an amenable number.

12220121022212 is a deficient number, since it is larger than the sum of its proper divisors (9193278761788).

12220121022212 is a wasteful number, since it uses less digits than its factorization.

12220121022212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1312715 (or 1312713 counting only the distinct ones).

The product of its (nonzero) digits is 256, while the sum is 20.

Adding to 12220121022212 its reverse (21222012102221), we get a palindrome (33442133124433).

It can be divided in two parts, 1222012102221 and 2, that multiplied together give a palindrome (2444024204442).

The spelling of 12220121022212 in words is "twelve trillion, two hundred twenty billion, one hundred twenty-one million, twenty-two thousand, two hundred twelve".