20222020212 has 12 divisors (see below), whose sum is σ = 47184713856. Its totient is φ = 6740673400.

The previous prime is 20222020193. The next prime is 20222020213. The reversal of 20222020212 is 21202022202.

It is a tau number, because it is divible by the number of its divisors (12).

It is a junction number, because it is equal to n+sod(n) for n = 20222020191 and 20222020200.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20222020213) 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 3 ways as a sum of consecutive naturals, for example, 842584164 + ... + 842584187.

It is an arithmetic number, because the mean of its divisors is an integer number (3932059488).

Almost surely, 2^20222020212 is an apocalyptic number.

It is an amenable number.

20222020212 is an abundant number, since it is smaller than the sum of its proper divisors (26962693644).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

20222020212 is a wasteful number, since it uses less digits than its factorization.

20222020212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1685168358 (or 1685168356 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 15.

Adding to 20222020212 its reverse (21202022202), we get a palindrome (41424042414).

The spelling of 20222020212 in words is "twenty billion, two hundred twenty-two million, twenty thousand, two hundred twelve".