201121022222 has 8 divisors (see below), whose sum is σ = 319427505936. Its totient is φ = 94645186912.

The previous prime is 201121022177. The next prime is 201121022243. The reversal of 201121022222 is 222220121102.

It is a happy number.

201121022222 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a Harshad number since it is a multiple of its sum of digits (17).

It is a self number, because there is not a number n which added to its sum of digits gives 201121022222.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2957662058 + ... + 2957662125.

It is an arithmetic number, because the mean of its divisors is an integer number (39928438242).

Almost surely, 2^201121022222 is an apocalyptic number.

201121022222 is a deficient number, since it is larger than the sum of its proper divisors (118306483714).

201121022222 is a wasteful number, since it uses less digits than its factorization.

201121022222 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5915324202.

The product of its (nonzero) digits is 128, while the sum is 17.

Adding to 201121022222 its reverse (222220121102), we get a palindrome (423341143324).

The spelling of 201121022222 in words is "two hundred one billion, one hundred twenty-one million, twenty-two thousand, two hundred twenty-two".