201122221194 has 24 divisors (see below), whose sum is σ = 445898879712. Its totient is φ = 65481653160.

The previous prime is 201122221141. The next prime is 201122221207. The reversal of 201122221194 is 491122221102.

201122221194 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an unprimeable number.

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 11 ways as a sum of consecutive naturals, for example, 129923142 + ... + 129924689.

It is an arithmetic number, because the mean of its divisors is an integer number (18579119988).

Almost surely, 2^201122221194 is an apocalyptic number.

201122221194 is an abundant number, since it is smaller than the sum of its proper divisors (244776658518).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

201122221194 is a wasteful number, since it uses less digits than its factorization.

201122221194 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 259847882 (or 259847879 counting only the distinct ones).

The product of its (nonzero) digits is 1152, while the sum is 27.

Adding to 201122221194 its reverse (491122221102), we get a palindrome (692244442296).

The spelling of 201122221194 in words is "two hundred one billion, one hundred twenty-two million, two hundred twenty-one thousand, one hundred ninety-four".