210221020001 has 8 divisors (see below), whose sum is σ = 223919821440. Its totient is φ = 196670314048.

The previous prime is 210221019989. The next prime is 210221020007. The reversal of 210221020001 is 100020122012.

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 not a de Polignac number, because 210221020001 - 2²² = 210216825697 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (210221020007) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 37020941 + ... + 37026618.

It is an arithmetic number, because the mean of its divisors is an integer number (27989977680).

Almost surely, 2^210221020001 is an apocalyptic number.

It is an amenable number.

210221020001 is a deficient number, since it is larger than the sum of its proper divisors (13698801439).

210221020001 is a wasteful number, since it uses less digits than its factorization.

210221020001 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 74047743.

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

Adding to 210221020001 its reverse (100020122012), we get a palindrome (310241142013).

The spelling of 210221020001 in words is "two hundred ten billion, two hundred twenty-one million, twenty thousand, one".