21202022202112 has 18 divisors (see below), whose sum is σ = 42321224005508. Its totient is φ = 10601011100928.

The previous prime is 21202022202037. The next prime is 21202022202131. The reversal of 21202022202112 is 21120222020212.

It is a self number, because there is not a number n which added to its sum of digits gives 21202022202112.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 41410199358 + ... + 41410199869.

Almost surely, 2^{21202022202112} is an apocalyptic number.

It is an amenable number.

21202022202112 is a deficient number, since it is larger than the sum of its proper divisors (21119201803396).

21202022202112 is an frugal number, since it uses more digits than its factorization.

21202022202112 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 82820399243 (or 82820399229 counting only the distinct ones).

The product of its (nonzero) digits is 256, while the sum is 19.

Adding to 21202022202112 its reverse (21120222020212), we get a palindrome (42322244222324).

The spelling of 21202022202112 in words is "twenty-one trillion, two hundred two billion, twenty-two million, two hundred two thousand, one hundred twelve".