201100123222 has 16 divisors (see below), whose sum is σ = 308083461120. Its totient is φ = 98405847208.

The previous prime is 201100123183. The next prime is 201100123249. The reversal of 201100123222 is 222321001102.

It is a happy number.

It is a super-2 number, since 2×201100123222² (a number of 23 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 201100123196 and 201100123205.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2537229 + ... + 2615287.

It is an arithmetic number, because the mean of its divisors is an integer number (19255216320).

Almost surely, 2^201100123222 is an apocalyptic number.

201100123222 is a deficient number, since it is larger than the sum of its proper divisors (106983337898).

201100123222 is a wasteful number, since it uses less digits than its factorization.

201100123222 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 105515.

The product of its (nonzero) digits is 96, while the sum is 16.

Adding to 201100123222 its reverse (222321001102), we get a palindrome (423421124324).

The spelling of 201100123222 in words is "two hundred one billion, one hundred million, one hundred twenty-three thousand, two hundred twenty-two".