221313133131112 has 32 divisors (see below), whose sum is σ = 457167993300000. Its totient is φ = 99600869992000.

The previous prime is 221313133131107. The next prime is 221313133131113. The reversal of 221313133131112 is 211131331313122.

221313133131112 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not an unprimeable number, because it can be changed into a prime (221313133131113) 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, 12450099862 + ... + 12450117637.

It is an arithmetic number, because the mean of its divisors is an integer number (14286499790625).

Almost surely, 2^{221313133131112} is an apocalyptic number.

221313133131112 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

It is an amenable number.

221313133131112 is an abundant number, since it is smaller than the sum of its proper divisors (235854860168888).

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

221313133131112 is a wasteful number, since it uses less digits than its factorization.

221313133131112 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24900217617 (or 24900217613 counting only the distinct ones).

The product of its digits is 1944, while the sum is 28.

Adding to 221313133131112 its reverse (211131331313122), we get a palindrome (432444464444234).

The spelling of 221313133131112 in words is "two hundred twenty-one trillion, three hundred thirteen billion, one hundred thirty-three million, one hundred thirty-one thousand, one hundred twelve".