20113021221108 has 48 divisors (see below), whose sum is σ = 47868350374656. Its totient is φ = 6570622764160.

The previous prime is 20113021221089. The next prime is 20113021221127. The reversal of 20113021221108 is 80112212031102.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (20113021221089) and next prime (20113021221127).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 16777491 + ... + 17936282.

It is an arithmetic number, because the mean of its divisors is an integer number (997257299472).

Almost surely, 2^{20113021221108} is an apocalyptic number.

It is an amenable number.

20113021221108 is an abundant number, since it is smaller than the sum of its proper divisors (27755329153548).

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

20113021221108 is a wasteful number, since it uses less digits than its factorization.

20113021221108 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 34714744 (or 34714742 counting only the distinct ones).

The product of its (nonzero) digits is 384, while the sum is 24.

The spelling of 20113021221108 in words is "twenty trillion, one hundred thirteen billion, twenty-one million, two hundred twenty-one thousand, one hundred eight".