201222202122 has 48 divisors (see below), whose sum is σ = 441536659200. Its totient is φ = 66224812896.

The previous prime is 201222202099. The next prime is 201222202127. The reversal of 201222202122 is 221202222102.

201222202122 is digitally balanced in base 2 and base 3, because in such bases it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a junction number, because it is equal to n+sod(n) for n = 201222202095 and 201222202104.

It is not an unprimeable number, because it can be changed into a prime (201222202127) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 223263 + ... + 672525.

It is an arithmetic number, because the mean of its divisors is an integer number (9198680400).

Almost surely, 2^201222202122 is an apocalyptic number.

201222202122 is an abundant number, since it is smaller than the sum of its proper divisors (240314457078).

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

201222202122 is a wasteful number, since it uses less digits than its factorization.

201222202122 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 449587 (or 449584 counting only the distinct ones).

The product of its (nonzero) digits is 256, while the sum is 18.

Adding to 201222202122 its reverse (221202222102), we get a palindrome (422424424224).

The spelling of 201222202122 in words is "two hundred one billion, two hundred twenty-two million, two hundred two thousand, one hundred twenty-two".