203130111222 has 96 divisors (see below), whose sum is σ = 459486203904. Its totient is φ = 64794945600.

The previous prime is 203130111211. The next prime is 203130111227. The reversal of 203130111222 is 222111031302.

203130111222 is a `hidden beast` number, since 20 + 313 + 0 + 111 + 222 = 666.

203130111222 is digitally balanced in base 3 and base 7, because in such bases it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a junction number, because it is equal to n+sod(n) for n = 203130111195 and 203130111204.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (203130111227) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 20375283 + ... + 20385249.

It is an arithmetic number, because the mean of its divisors is an integer number (4786314624).

Almost surely, 2^203130111222 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 203130111222, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (229743101952).

203130111222 is an abundant number, since it is smaller than the sum of its proper divisors (256356092682).

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

203130111222 is a wasteful number, since it uses less digits than its factorization.

203130111222 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10514 (or 10511 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 18.

Adding to 203130111222 its reverse (222111031302), we get a palindrome (425241142524).

The spelling of 203130111222 in words is "two hundred three billion, one hundred thirty million, one hundred eleven thousand, two hundred twenty-two".