221201002196 has 6 divisors (see below), whose sum is σ = 387101753850. Its totient is φ = 110600501096.

The previous prime is 221201002153. The next prime is 221201002199. The reversal of 221201002196 is 691200102122.

221201002196 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 only one way, i.e., 220326972100 + 874030096 = 469390^2 + 29564^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (221201002199) 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 as a sum of consecutive naturals, namely, 27650125271 + ... + 27650125278.

It is an arithmetic number, because the mean of its divisors is an integer number (64516958975).

Almost surely, 2^221201002196 is an apocalyptic number.

It is an amenable number.

221201002196 is a deficient number, since it is larger than the sum of its proper divisors (165900751654).

221201002196 is a wasteful number, since it uses less digits than its factorization.

221201002196 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 55300250553 (or 55300250551 counting only the distinct ones).

The product of its (nonzero) digits is 864, while the sum is 26.

The spelling of 221201002196 in words is "two hundred twenty-one billion, two hundred one million, two thousand, one hundred ninety-six".