221011200101 has 8 divisors (see below), whose sum is σ = 223242263640. Its totient is φ = 218783835648.

The previous prime is 221011200097. The next prime is 221011200103. The reversal of 221011200101 is 101002110122.

221011200101 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 4 ways, for example, as 3039868225 + 217971331876 = 55135^2 + 466874^2 .

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 221011200101 - 2² = 221011200097 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (221011200103) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 804596 + ... + 1043741.

It is an arithmetic number, because the mean of its divisors is an integer number (27905282955).

Almost surely, 2^221011200101 is an apocalyptic number.

It is an amenable number.

221011200101 is a deficient number, since it is larger than the sum of its proper divisors (2231063539).

221011200101 is a wasteful number, since it uses less digits than its factorization.

221011200101 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1849543.

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

Adding to 221011200101 its reverse (101002110122), we get a palindrome (322013310223).

The spelling of 221011200101 in words is "two hundred twenty-one billion, eleven million, two hundred thousand, one hundred one".