12011031222330 has 192 divisors, whose sum is σ = 34231225771008. Its totient is φ = 2688399866880.

The previous prime is 12011031222317. The next prime is 12011031222343. The reversal of 12011031222330 is 3322213011021.

It is an interprime number because it is at equal distance from previous prime (12011031222317) and next prime (12011031222343).

It is a Harshad number since it is a multiple of its sum of digits (21).

It is a junction number, because it is equal to n+sod(n) for n = 12011031222297 and 12011031222306.

It is an unprimeable number.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 40443159 + ... + 40739061.

It is an arithmetic number, because the mean of its divisors is an integer number (178287634224).

Almost surely, 2^{12011031222330} is an apocalyptic number.

12011031222330 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 12011031222330, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (17115612885504).

12011031222330 is an abundant number, since it is smaller than the sum of its proper divisors (22220194548678).

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

12011031222330 is a wasteful number, since it uses less digits than its factorization.

12011031222330 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 296501 (or 296494 counting only the distinct ones).

The product of its (nonzero) digits is 432, while the sum is 21.

Adding to 12011031222330 its reverse (3322213011021), we get a palindrome (15333244233351).

The spelling of 12011031222330 in words is "twelve trillion, eleven billion, thirty-one million, two hundred twenty-two thousand, three hundred thirty".