20224312212 has 24 divisors (see below), whose sum is σ = 50820066976. Its totient is φ = 6222865248.

The previous prime is 20224312189. The next prime is 20224312223. The reversal of 20224312212 is 21221342202.

It is a congruent number.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 64821358 + ... + 64821669.

Almost surely, 2^20224312212 is an apocalyptic number.

It is an amenable number.

20224312212 is an abundant number, since it is smaller than the sum of its proper divisors (30595754764).

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

20224312212 is a wasteful number, since it uses less digits than its factorization.

20224312212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 129643047 (or 129643045 counting only the distinct ones).

The product of its (nonzero) digits is 768, while the sum is 21.

Adding to 20224312212 its reverse (21221342202), we get a palindrome (41445654414).

The spelling of 20224312212 in words is "twenty billion, two hundred twenty-four million, three hundred twelve thousand, two hundred twelve".