201012101000021 has 8 divisors (see below), whose sum is σ = 211674629918400. Its totient is φ = 190357866547200.

The previous prime is 201012100999999. The next prime is 201012101000057. The reversal of 201012101000021 is 120000101210102.

201012101000021 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-201012101000021 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 201012100999966 and 201012101000011.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (201012101000071) 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, 2073566636 + ... + 2073663573.

It is an arithmetic number, because the mean of its divisors is an integer number (26459328739800).

Almost surely, 2^{201012101000021} is an apocalyptic number.

It is an amenable number.

201012101000021 is a deficient number, since it is larger than the sum of its proper divisors (10662528918379).

201012101000021 is a wasteful number, since it uses less digits than its factorization.

201012101000021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4147232779.

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

Adding to 201012101000021 its reverse (120000101210102), we get a palindrome (321012202210123).

The spelling of 201012101000021 in words is "two hundred one trillion, twelve billion, one hundred one million, twenty-one", and thus it is an aban number.