30152220125 has 8 divisors (see below), whose sum is σ = 37629970872. Its totient is φ = 24121776000.

The previous prime is 30152220121. The next prime is 30152220143. The reversal of 30152220125 is 52102225103.

It can be written as a sum of positive squares in 4 ways, for example, as 1198475161 + 28953744964 = 34619^2 + 170158^2 .

It is not a de Polignac number, because 30152220125 - 2² = 30152220121 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 30152220125.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30152220121) 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, 120608756 + ... + 120609005.

It is an arithmetic number, because the mean of its divisors is an integer number (4703746359).

Almost surely, 2^30152220125 is an apocalyptic number.

It is an amenable number.

30152220125 is a deficient number, since it is larger than the sum of its proper divisors (7477750747).

30152220125 is an equidigital number, since it uses as much as digits as its factorization.

30152220125 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 241217776 (or 241217766 counting only the distinct ones).

The product of its (nonzero) digits is 1200, while the sum is 23.

Adding to 30152220125 its reverse (52102225103), we get a palindrome (82254445228).

The spelling of 30152220125 in words is "thirty billion, one hundred fifty-two million, two hundred twenty thousand, one hundred twenty-five".