10021011020020 has 144 divisors (see below), whose sum is σ = 28759601259648. Its totient is φ = 2883167965440.

The previous prime is 10021011019933. The next prime is 10021011020029. The reversal of 10021011020020 is 2002011012001.

10021011020020 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 = 10021011019979 and 10021011020006.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10021011020029) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 35613432 + ... + 35893711.

It is an arithmetic number, because the mean of its divisors is an integer number (199719453192).

Almost surely, 2^{10021011020020} is an apocalyptic number.

10021011020020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

10021011020020 is an abundant number, since it is smaller than the sum of its proper divisors (18738590239628).

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

10021011020020 is a wasteful number, since it uses less digits than its factorization.

10021011020020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 71507190 (or 71507181 counting only the distinct ones).

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

Adding to 10021011020020 its reverse (2002011012001), we get a palindrome (12023022032021).

The spelling of 10021011020020 in words is "ten trillion, twenty-one billion, eleven million, twenty thousand, twenty".