21202001201112 has 16 divisors (see below), whose sum is σ = 53005003002840. Its totient is φ = 7067333733696.

The previous prime is 21202001201077. The next prime is 21202001201141. The reversal of 21202001201112 is 21110210020212.

It is a junction number, because it is equal to n+sod(n) for n = 21202001201091 and 21202001201100.

It is a congruent number.

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 441708358333 + ... + 441708358380.

Almost surely, 2^{21202001201112} is an apocalyptic number.

It is an amenable number.

21202001201112 is an abundant number, since it is smaller than the sum of its proper divisors (31803001801728).

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

21202001201112 is a wasteful number, since it uses less digits than its factorization.

21202001201112 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 883416716722 (or 883416716718 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 15.

Adding to 21202001201112 its reverse (21110210020212), we get a palindrome (42312211221324).

The spelling of 21202001201112 in words is "twenty-one trillion, two hundred two billion, one million, two hundred one thousand, one hundred twelve".