202121121112 has 8 divisors (see below), whose sum is σ = 378977102100. Its totient is φ = 101060560552.

The previous prime is 202121121109. The next prime is 202121121131. The reversal of 202121121112 is 211121121202.

It is a tau number, because it is divible by the number of its divisors (8).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 12632570062 + ... + 12632570077.

Almost surely, 2^202121121112 is an apocalyptic number.

It is an amenable number.

202121121112 is a deficient number, since it is larger than the sum of its proper divisors (176855980988).

202121121112 is a wasteful number, since it uses less digits than its factorization.

202121121112 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25265140145 (or 25265140141 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 16.

Adding to 202121121112 its reverse (211121121202), we get a palindrome (413242242314).

The spelling of 202121121112 in words is "two hundred two billion, one hundred twenty-one million, one hundred twenty-one thousand, one hundred twelve".