10021100201020 has 24 divisors (see below), whose sum is σ = 21959280441504. Its totient is φ = 3834160076736.

The previous prime is 10021100200819. The next prime is 10021100201023. The reversal of 10021100201020 is 2010200112001.

It is a Harshad number since it is a multiple of its sum of digits (10).

It is a junction number, because it is equal to n+sod(n) for n = 10021100200988 and 10021100201006.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10021100201023) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 10892499759 + ... + 10892500678.

It is an arithmetic number, because the mean of its divisors is an integer number (914970018396).

Almost surely, 2^{10021100201020} is an apocalyptic number.

10021100201020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

10021100201020 is an abundant number, since it is smaller than the sum of its proper divisors (11938180240484).

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

10021100201020 is a wasteful number, since it uses less digits than its factorization.

10021100201020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21785000469 (or 21785000467 counting only the distinct ones).

The product of its (nonzero) digits is 8, while the sum is 10.

Adding to 10021100201020 its reverse (2010200112001), we get a palindrome (12031300313021).

The spelling of 10021100201020 in words is "ten trillion, twenty-one billion, one hundred million, two hundred one thousand, twenty".