12201021011112 has 32 divisors (see below), whose sum is σ = 30578618767680. Its totient is φ = 4056864838400.

The previous prime is 12201021011033. The next prime is 12201021011119. The reversal of 12201021011112 is 21111012010221.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 12201021011091 and 12201021011100.

It is not an unprimeable number, because it can be changed into a prime (12201021011119) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 633875508 + ... + 633894755.

It is an arithmetic number, because the mean of its divisors is an integer number (955581836490).

Almost surely, 2^{12201021011112} is an apocalyptic number.

12201021011112 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

12201021011112 is an abundant number, since it is smaller than the sum of its proper divisors (18377597756568).

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

12201021011112 is a wasteful number, since it uses less digits than its factorization.

12201021011112 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1267770673 (or 1267770669 counting only the distinct ones).

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

Adding to 12201021011112 its reverse (21111012010221), we get a palindrome (33312033021333).

The spelling of 12201021011112 in words is "twelve trillion, two hundred one billion, twenty-one million, eleven thousand, one hundred twelve".