201010220000021 has 8 divisors (see below), whose sum is σ = 211666563184320. Its totient is φ = 190361562607872.

The previous prime is 201010219999997. The next prime is 201010220000101. The reversal of 201010220000021 is 120000022010102.

It is a happy number.

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-201010220000021 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 201010219999957 and 201010220000011.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (201010220000521) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1921394345 + ... + 1921498958.

It is an arithmetic number, because the mean of its divisors is an integer number (26458320398040).

Almost surely, 2^{201010220000021} is an apocalyptic number.

It is an amenable number.

201010220000021 is a deficient number, since it is larger than the sum of its proper divisors (10656343184299).

201010220000021 is a wasteful number, since it uses less digits than its factorization.

201010220000021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3842896075.

The product of its (nonzero) digits is 16, while the sum is 11.

Adding to 201010220000021 its reverse (120000022010102), we get a palindrome (321010242010123).

The spelling of 201010220000021 in words is "two hundred one trillion, ten billion, two hundred twenty million, twenty-one", and thus it is an aban number.