201222303444 has 36 divisors (see below), whose sum is σ = 517266378720. Its totient is φ = 65937251280.

The previous prime is 201222303439. The next prime is 201222303449. The reversal of 201222303444 is 444303222102.

It is an interprime number because it is at equal distance from previous prime (201222303439) and next prime (201222303449).

It is a tau number, because it is divible by the number of its divisors (36).

It is a super-2 number, since 2×201222303444² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (201222303449) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 47366592 + ... + 47370839.

It is an arithmetic number, because the mean of its divisors is an integer number (14368510520).

Almost surely, 2^201222303444 is an apocalyptic number.

It is an amenable number.

201222303444 is an abundant number, since it is smaller than the sum of its proper divisors (316044075276).

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

201222303444 is a wasteful number, since it uses less digits than its factorization.

201222303444 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 94737500 (or 94737495 counting only the distinct ones).

The product of its (nonzero) digits is 9216, while the sum is 27.

Adding to 201222303444 its reverse (444303222102), we get a palindrome (645525525546).

The spelling of 201222303444 in words is "two hundred one billion, two hundred twenty-two million, three hundred three thousand, four hundred forty-four".