10101012021020 has 24 divisors (see below), whose sum is σ = 21212324993664. Its totient is φ = 4040366760896.

The previous prime is 10101012021017. The next prime is 10101012021071. The reversal of 10101012021020 is 2012021010101.

It is a junction number, because it is equal to n+sod(n) for n = 10101012020992 and 10101012021010.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 150092 + ... + 4497171.

It is an arithmetic number, because the mean of its divisors is an integer number (883846874736).

Almost surely, 2^{10101012021020} is an apocalyptic number.

10101012021020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

10101012021020 is an abundant number, since it is smaller than the sum of its proper divisors (11111312972644).

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

10101012021020 is a wasteful number, since it uses less digits than its factorization.

10101012021020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4755949 (or 4755947 counting only the distinct ones).

The product of its (nonzero) digits is 8, while the sum is 11.

Adding to 10101012021020 its reverse (2012021010101), we get a palindrome (12113033031121).

The spelling of 10101012021020 in words is "ten trillion, one hundred one billion, twelve million, twenty-one thousand, twenty".