21022120201112 has 16 divisors (see below), whose sum is σ = 39416786682000. Its totient is φ = 10510977085920.

The previous prime is 21022120201073. The next prime is 21022120201189. The reversal of 21022120201112 is 21110202122012.

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, 9293939 + ... + 11332322.

It is an arithmetic number, because the mean of its divisors is an integer number (2463549167625).

Almost surely, 2^{21022120201112} is an apocalyptic number.

It is an amenable number.

21022120201112 is a deficient number, since it is larger than the sum of its proper divisors (18394666480888).

21022120201112 is a wasteful number, since it uses less digits than its factorization.

21022120201112 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20753666 (or 20753662 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 17.

Adding to 21022120201112 its reverse (21110202122012), we get a palindrome (42132322323124).

The spelling of 21022120201112 in words is "twenty-one trillion, twenty-two billion, one hundred twenty million, two hundred one thousand, one hundred twelve".