202111102212112 has 30 divisors (see below), whose sum is σ = 392642919285162. Its totient is φ = 100784623585536.

The previous prime is 202111102212083. The next prime is 202111102212121. The reversal of 202111102212112 is 211212201111202.

It is a happy number.

It can be written as a sum of positive squares in 3 ways, for example, as 1385225425936 + 200725876786176 = 1176956^2 + 14167776^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 202111102212112.

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 in 5 ways as a sum of consecutive naturals, for example, 43170453 + ... + 47622580.

Almost surely, 2^{202111102212112} is an apocalyptic number.

It is an amenable number.

202111102212112 is a deficient number, since it is larger than the sum of its proper divisors (190531817073050).

202111102212112 is an frugal number, since it uses more digits than its factorization.

202111102212112 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 90793787 (or 90793408 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 19.

Adding to 202111102212112 its reverse (211212201111202), we get a palindrome (413323303323314).

The spelling of 202111102212112 in words is "two hundred two trillion, one hundred eleven billion, one hundred two million, two hundred twelve thousand, one hundred twelve".