201002110222021 has 4 divisors (see below), whose sum is σ = 201455839590912. Its totient is φ = 200548380853132.

The previous prime is 201002110221971. The next prime is 201002110222027. The reversal of 201002110222021 is 120222011200102.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 201002110222021 - 2²⁹ = 201001573351109 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 201002110221986 and 201002110222004.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (201002110222027) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 226864683781 + ... + 226864684666.

It is an arithmetic number, because the mean of its divisors is an integer number (50363959897728).

Almost surely, 2^{201002110222021} is an apocalyptic number.

It is an amenable number.

201002110222021 is a deficient number, since it is larger than the sum of its proper divisors (453729368891).

201002110222021 is an equidigital number, since it uses as much as digits as its factorization.

201002110222021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 453729368890.

The product of its (nonzero) digits is 64, while the sum is 16.

Adding to 201002110222021 its reverse (120222011200102), we get a palindrome (321224121422123).

The spelling of 201002110222021 in words is "two hundred one trillion, two billion, one hundred ten million, two hundred twenty-two thousand, twenty-one".