121220201112 has 16 divisors (see below), whose sum is σ = 303050502840. Its totient is φ = 40406733696.

The previous prime is 121220201107. The next prime is 121220201119. The reversal of 121220201112 is 211102022121.

121220201112 is digitally balanced in base 7, because in such base it contains all the possibile digits an equal number of times.

It is a junction number, because it is equal to n+sod(n) for n = 121220201091 and 121220201100.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (121220201119) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2525420833 + ... + 2525420880.

Almost surely, 2^121220201112 is an apocalyptic number.

121220201112 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

121220201112 is an abundant number, since it is smaller than the sum of its proper divisors (181830301728).

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

121220201112 is a wasteful number, since it uses less digits than its factorization.

121220201112 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5050841722 (or 5050841718 counting only the distinct ones).

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

Adding to 121220201112 its reverse (211102022121), we get a palindrome (332322223233).

The spelling of 121220201112 in words is "one hundred twenty-one billion, two hundred twenty million, two hundred one thousand, one hundred twelve".