20121021000222 has 8 divisors (see below), whose sum is σ = 40242042000456. Its totient is φ = 6707007000072.

The previous prime is 20121021000193. The next prime is 20121021000281. The reversal of 20121021000222 is 22200012012102.

It is a sphenic number, since it is the product of 3 distinct primes.

20121021000222 is an admirable number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1676751750013 + ... + 1676751750024.

It is an arithmetic number, because the mean of its divisors is an integer number (5030255250057).

Almost surely, 2^{20121021000222} is an apocalyptic number.

20121021000222 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

20121021000222 is a wasteful number, since it uses less digits than its factorization.

20121021000222 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3353503500042.

The product of its (nonzero) digits is 64, while the sum is 15.

Adding to 20121021000222 its reverse (22200012012102), we get a palindrome (42321033012324).

The spelling of 20121021000222 in words is "twenty trillion, one hundred twenty-one billion, twenty-one million, two hundred twenty-two", and thus it is an aban number.