30123022222220 has 96 divisors (see below), whose sum is σ = 67287001356288. Its totient is φ = 11288366595072.

The previous prime is 30123022222201. The next prime is 30123022222229. The reversal of 30123022222220 is 2222222032103.

It is not an unprimeable number, because it can be changed into a prime (30123022222229) 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, 1043496227 + ... + 1043525093.

It is an arithmetic number, because the mean of its divisors is an integer number (700906264128).

Almost surely, 2^{30123022222220} is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 30123022222220, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (33643500678144).

30123022222220 is an abundant number, since it is smaller than the sum of its proper divisors (37163979134068).

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

30123022222220 is a wasteful number, since it uses less digits than its factorization.

30123022222220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 42879 (or 42877 counting only the distinct ones).

The product of its (nonzero) digits is 2304, while the sum is 23.

Adding to 30123022222220 its reverse (2222222032103), we get a palindrome (32345244254323).

The spelling of 30123022222220 in words is "thirty trillion, one hundred twenty-three billion, twenty-two million, two hundred twenty-two thousand, two hundred twenty".