20221210100012 has 12 divisors (see below), whose sum is σ = 35390607255696. Its totient is φ = 10109608026960.

The previous prime is 20221210099963. The next prime is 20221210100023. The reversal of 20221210100012 is 21000101212202.

It is a self number, because there is not a number n which added to its sum of digits gives 20221210100012.

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 3 ways as a sum of consecutive naturals, for example, 249210128 + ... + 249291255.

It is an arithmetic number, because the mean of its divisors is an integer number (2949217271308).

Almost surely, 2^{20221210100012} is an apocalyptic number.

It is an amenable number.

20221210100012 is a deficient number, since it is larger than the sum of its proper divisors (15169397155684).

20221210100012 is a wasteful number, since it uses less digits than its factorization.

20221210100012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 498511528 (or 498511526 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 14.

Adding to 20221210100012 its reverse (21000101212202), we get a palindrome (41221311312214).

The spelling of 20221210100012 in words is "twenty trillion, two hundred twenty-one billion, two hundred ten million, one hundred thousand, twelve".