20112211022212 has 24 divisors (see below), whose sum is σ = 35352611300160. Its totient is φ = 10011467924640.

The previous prime is 20112211022207. The next prime is 20112211022219. The reversal of 20112211022212 is 21222011221102.

It is a self number, because there is not a number n which added to its sum of digits gives 20112211022212.

It is not an unprimeable number, because it can be changed into a prime (20112211022219) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 27736489 + ... + 28452367.

It is an arithmetic number, because the mean of its divisors is an integer number (1473025470840).

Almost surely, 2^{20112211022212} is an apocalyptic number.

It is an amenable number.

20112211022212 is a deficient number, since it is larger than the sum of its proper divisors (15240400277948).

20112211022212 is a wasteful number, since it uses less digits than its factorization.

20112211022212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 747051 (or 747049 counting only the distinct ones).

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

Adding to 20112211022212 its reverse (21222011221102), we get a palindrome (41334222243314).

The spelling of 20112211022212 in words is "twenty trillion, one hundred twelve billion, two hundred eleven million, twenty-two thousand, two hundred twelve".