20222021212 has 6 divisors (see below), whose sum is σ = 35388537128. Its totient is φ = 10111010604.

The previous prime is 20222021207. The next prime is 20222021219. The reversal of 20222021212 is 21212022202.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20222021219) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2527752648 + ... + 2527752655.

Almost surely, 2^20222021212 is an apocalyptic number.

It is an amenable number.

20222021212 is a deficient number, since it is larger than the sum of its proper divisors (15166515916).

20222021212 is a wasteful number, since it uses less digits than its factorization.

20222021212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5055505307 (or 5055505305 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 16.

Adding to 20222021212 its reverse (21212022202), we get a palindrome (41434043414).

The spelling of 20222021212 in words is "twenty billion, two hundred twenty-two million, twenty-one thousand, two hundred twelve".