202112202122 has 16 divisors (see below), whose sum is σ = 321010065792. Its totient is φ = 95109155520.

The previous prime is 202112202121. The next prime is 202112202133. The reversal of 202112202122 is 221202211202.

It is a happy number.

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 202112202122.

It is not an unprimeable number, because it can be changed into a prime (202112202121) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2482847 + ... + 2562957.

It is an arithmetic number, because the mean of its divisors is an integer number (20063129112).

Almost surely, 2^202112202122 is an apocalyptic number.

202112202122 is a deficient number, since it is larger than the sum of its proper divisors (118897863670).

202112202122 is a wasteful number, since it uses less digits than its factorization.

202112202122 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 154333.

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

Adding to 202112202122 its reverse (221202211202), we get a palindrome (423314413324).

The spelling of 202112202122 in words is "two hundred two billion, one hundred twelve million, two hundred two thousand, one hundred twenty-two".