210221020000011 has 8 divisors (see below), whose sum is σ = 282311201919040. Its totient is φ = 139139092373832.

The previous prime is 210221020000007. The next prime is 210221020000027. The reversal of 210221020000011 is 110000020122012.

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

It is not a de Polignac number, because 210221020000011 - 2² = 210221020000007 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (210221020000001) 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, 252063572725 + ... + 252063573558.

It is an arithmetic number, because the mean of its divisors is an integer number (35288900239880).

Almost surely, 2^{210221020000011} is an apocalyptic number.

210221020000011 is a deficient number, since it is larger than the sum of its proper divisors (72090181919029).

210221020000011 is a wasteful number, since it uses less digits than its factorization.

210221020000011 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 504127146425.

The product of its (nonzero) digits is 16, while the sum is 12.

Adding to 210221020000011 its reverse (110000020122012), we get a palindrome (320221040122023).

The spelling of 210221020000011 in words is "two hundred ten trillion, two hundred twenty-one billion, twenty million, eleven", and thus it is an aban number.