201201221094 has 32 divisors (see below), whose sum is σ = 421166870784. Its totient is φ = 63957289440.

The previous prime is 201201221093. The next prime is 201201221113. The reversal of 201201221094 is 490122102102.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (201201221093) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2156709 + ... + 2248064.

It is an arithmetic number, because the mean of its divisors is an integer number (13161464712).

Almost surely, 2^201201221094 is an apocalyptic number.

201201221094 is an abundant number, since it is smaller than the sum of its proper divisors (219965649690).

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

201201221094 is a wasteful number, since it uses less digits than its factorization.

201201221094 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4405132.

The product of its (nonzero) digits is 576, while the sum is 24.

Adding to 201201221094 its reverse (490122102102), we get a palindrome (691323323196).

The spelling of 201201221094 in words is "two hundred one billion, two hundred one million, two hundred twenty-one thousand, ninety-four".