10211021020020 has 96 divisors (see below), whose sum is σ = 28880638367616. Its totient is φ = 2695353408000.

The previous prime is 10211021019967. The next prime is 10211021020021. The reversal of 10211021020020 is 2002012011201.

10211021020020 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 (12).

It is a junction number, because it is equal to n+sod(n) for n = 10211021019978 and 10211021020005.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10211021020021) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 26210055 + ... + 26596785.

It is an arithmetic number, because the mean of its divisors is an integer number (300839982996).

Almost surely, 2^{10211021020020} is an apocalyptic number.

10211021020020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 10211021020020, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (14440319183808).

10211021020020 is an abundant number, since it is smaller than the sum of its proper divisors (18669617347596).

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

10211021020020 is a wasteful number, since it uses less digits than its factorization.

10211021020020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 391201 (or 391199 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 12.

Adding to 10211021020020 its reverse (2002012011201), we get a palindrome (12213033031221).

The spelling of 10211021020020 in words is "ten trillion, two hundred eleven billion, twenty-one million, twenty thousand, twenty".