20224001212 has 6 divisors (see below), whose sum is σ = 35392002128. Its totient is φ = 10112000604.

The previous prime is 20224001137. The next prime is 20224001219. The reversal of 20224001212 is 21210042202.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20224001219) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2528000148 + ... + 2528000155.

Almost surely, 2^20224001212 is an apocalyptic number.

It is an amenable number.

20224001212 is a deficient number, since it is larger than the sum of its proper divisors (15168000916).

20224001212 is a wasteful number, since it uses less digits than its factorization.

20224001212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5056000307 (or 5056000305 counting only the distinct ones).

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

Adding to 20224001212 its reverse (21210042202), we get a palindrome (41434043414).

The spelling of 20224001212 in words is "twenty billion, two hundred twenty-four million, one thousand, two hundred twelve".