201021320222 has 4 divisors (see below), whose sum is σ = 301531980336. Its totient is φ = 100510660110.

The previous prime is 201021320183. The next prime is 201021320237. The reversal of 201021320222 is 222023120102.

201021320222 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It is a super-2 number, since 2×201021320222² (a number of 23 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 201021320222.

It is a congruent number.

It is an unprimeable number.

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 as a sum of consecutive naturals, namely, 50255330054 + ... + 50255330057.

It is an arithmetic number, because the mean of its divisors is an integer number (75382995084).

Almost surely, 2^201021320222 is an apocalyptic number.

201021320222 is a deficient number, since it is larger than the sum of its proper divisors (100510660114).

201021320222 is a wasteful number, since it uses less digits than its factorization.

201021320222 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 100510660113.

The product of its (nonzero) digits is 192, while the sum is 17.

Adding to 201021320222 its reverse (222023120102), we get a palindrome (423044440324).

The spelling of 201021320222 in words is "two hundred one billion, twenty-one million, three hundred twenty thousand, two hundred twenty-two".