20022212201212 has 48 divisors (see below), whose sum is σ = 38286234427392. Its totient is φ = 9106725712320.

The previous prime is 20022212201207. The next prime is 20022212201213. The reversal of 20022212201212 is 21210221222002.

It is a self number, because there is not a number n which added to its sum of digits gives 20022212201212.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20022212201213) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 8357508 + ... + 10482955.

It is an arithmetic number, because the mean of its divisors is an integer number (797629883904).

Almost surely, 2^{20022212201212} is an apocalyptic number.

It is an amenable number.

20022212201212 is a deficient number, since it is larger than the sum of its proper divisors (18264022226180).

20022212201212 is a wasteful number, since it uses less digits than its factorization.

20022212201212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18840778 (or 18840776 counting only the distinct ones).

The product of its (nonzero) digits is 256, while the sum is 19.

Adding to 20022212201212 its reverse (21210221222002), we get a palindrome (41232433423214).

The spelling of 20022212201212 in words is "twenty trillion, twenty-two billion, two hundred twelve million, two hundred one thousand, two hundred twelve".