10020101000021 has 8 divisors (see below), whose sum is σ = 11451563143104. Its totient is φ = 8588643642720.

The previous prime is 10020100999981. The next prime is 10020101000033. The reversal of 10020101000021 is 12000010102001.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 10020101000021 - 2²² = 10020096805717 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 10020100999972 and 10020101000008.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10020101005021) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 7735481 + ... + 8937441.

It is an arithmetic number, because the mean of its divisors is an integer number (1431445392888).

Almost surely, 2^{10020101000021} is an apocalyptic number.

It is an amenable number.

10020101000021 is a deficient number, since it is larger than the sum of its proper divisors (1431462143083).

10020101000021 is a wasteful number, since it uses less digits than its factorization.

10020101000021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2392891.

The product of its (nonzero) digits is 4, while the sum is 8.

Adding to 10020101000021 its reverse (12000010102001), we get a palindrome (22020111102022).

The spelling of 10020101000021 in words is "ten trillion, twenty billion, one hundred one million, twenty-one", and thus it is an aban number.