30231111222 has 64 divisors (see below), whose sum is σ = 72595373760. Its totient is φ = 9270070272.

The previous prime is 30231111221. The next prime is 30231111227. The reversal of 30231111222 is 22211113203.

30231111222 is a `hidden beast` number, since 302 + 31 + 111 + 222 = 666.

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 = 30231111195 and 30231111204.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30231111221) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 132198 + ... + 279174.

It is an arithmetic number, because the mean of its divisors is an integer number (1134302715).

Almost surely, 2^30231111222 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 30231111222, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (36297686880).

30231111222 is an abundant number, since it is smaller than the sum of its proper divisors (42364262538).

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

30231111222 is a wasteful number, since it uses less digits than its factorization.

30231111222 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 147294 (or 147288 counting only the distinct ones).

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

Adding to 30231111222 its reverse (22211113203), we get a palindrome (52442224425).

The spelling of 30231111222 in words is "thirty billion, two hundred thirty-one million, one hundred eleven thousand, two hundred twenty-two".