20212211212 has 12 divisors (see below), whose sum is σ = 35373128056. Its totient is φ = 10105603200.

The previous prime is 20212211207. The next prime is 20212211213. The reversal of 20212211212 is 21211221202.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (20212211213) 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 3 ways as a sum of consecutive naturals, for example, 26373 + ... + 202780.

Almost surely, 2^20212211212 is an apocalyptic number.

It is an amenable number.

20212211212 is a deficient number, since it is larger than the sum of its proper divisors (15160916844).

20212211212 is a wasteful number, since it uses less digits than its factorization.

20212211212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 251208 (or 251206 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 16.

Adding to 20212211212 its reverse (21211221202), we get a palindrome (41423432414).

The spelling of 20212211212 in words is "twenty billion, two hundred twelve million, two hundred eleven thousand, two hundred twelve".