20221201210012 has 18 divisors (see below), whose sum is σ = 38896566791264. Its totient is φ = 9191455095240.

The previous prime is 20221201209949. The next prime is 20221201210013. The reversal of 20221201210012 is 21001210212202.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20221201210013) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 20889670188 + ... + 20889671155.

Almost surely, 2^{20221201210012} is an apocalyptic number.

20221201210012 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

It is an amenable number.

20221201210012 is a deficient number, since it is larger than the sum of its proper divisors (18675365581252).

20221201210012 is a wasteful number, since it uses less digits than its factorization.

20221201210012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 41779341369 (or 41779341356 counting only the distinct ones).

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

Adding to 20221201210012 its reverse (21001210212202), we get a palindrome (41222411422214).

The spelling of 20221201210012 in words is "twenty trillion, two hundred twenty-one billion, two hundred one million, two hundred ten thousand, twelve".