20111201022212 has 48 divisors (see below), whose sum is σ = 39465458928000. Its totient is φ = 8917498563072.

The previous prime is 20111201022173. The next prime is 20111201022217. The reversal of 20111201022212 is 21222010211102.

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

It is not an unprimeable number, because it can be changed into a prime (20111201022217) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 95856587 + ... + 96066162.

It is an arithmetic number, because the mean of its divisors is an integer number (822197061000).

Almost surely, 2^{20111201022212} is an apocalyptic number.

It is an amenable number.

20111201022212 is a deficient number, since it is larger than the sum of its proper divisors (19354257905788).

20111201022212 is a wasteful number, since it uses less digits than its factorization.

20111201022212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 191922860 (or 191922858 counting only the distinct ones).

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

Adding to 20111201022212 its reverse (21222010211102), we get a palindrome (41333211233314).

The spelling of 20111201022212 in words is "twenty trillion, one hundred eleven billion, two hundred one million, twenty-two thousand, two hundred twelve".