202111121112 has 16 divisors (see below), whose sum is σ = 505277802840. Its totient is φ = 67370373696.

The previous prime is 202111121111. The next prime is 202111121117. The reversal of 202111121112 is 211121111202.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 202111121091 and 202111121100.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (202111121111) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4210648333 + ... + 4210648380.

Almost surely, 2^202111121112 is an apocalyptic number.

It is an amenable number.

202111121112 is an abundant number, since it is smaller than the sum of its proper divisors (303166681728).

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

202111121112 is a wasteful number, since it uses less digits than its factorization.

202111121112 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8421296722 (or 8421296718 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 15.

Adding to 202111121112 its reverse (211121111202), we get a palindrome (413232232314).

The spelling of 202111121112 in words is "two hundred two billion, one hundred eleven million, one hundred twenty-one thousand, one hundred twelve".