201322212220 has 12 divisors (see below), whose sum is σ = 422776645704. Its totient is φ = 80528884880.

The previous prime is 201322212197. The next prime is 201322212229. The reversal of 201322212220 is 22212223102.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (201322212229) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5033055286 + ... + 5033055325.

It is an arithmetic number, because the mean of its divisors is an integer number (35231387142).

Almost surely, 2^201322212220 is an apocalyptic number.

201322212220 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

201322212220 is an abundant number, since it is smaller than the sum of its proper divisors (221454433484).

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

201322212220 is a wasteful number, since it uses less digits than its factorization.

201322212220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10066110620 (or 10066110618 counting only the distinct ones).

The product of its (nonzero) digits is 384, while the sum is 19.

Adding to 201322212220 its reverse (22212223102), we get a palindrome (223534435322).

The spelling of 201322212220 in words is "two hundred one billion, three hundred twenty-two million, two hundred twelve thousand, two hundred twenty".