30020212125 has 96 divisors (see below), whose sum is σ = 55170442080. Its totient is φ = 15700608000.

The previous prime is 30020212091. The next prime is 30020212147. The reversal of 30020212125 is 52121202003.

It can be written as a sum of positive squares in 16 ways, for example, as 28290567204 + 1729644921 = 168198^2 + 41589^2 .

It is not a de Polignac number, because 30020212125 - 2¹⁰ = 30020211101 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 30020212098 and 30020212107.

It is a congruent number.

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, 42341271 + ... + 42341979.

It is an arithmetic number, because the mean of its divisors is an integer number (574692105).

Almost surely, 2^30020212125 is an apocalyptic number.

It is an amenable number.

30020212125 is a deficient number, since it is larger than the sum of its proper divisors (25150229955).

30020212125 is a wasteful number, since it uses less digits than its factorization.

30020212125 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1408 (or 1395 counting only the distinct ones).

The product of its (nonzero) digits is 240, while the sum is 18.

Adding to 30020212125 its reverse (52121202003), we get a palindrome (82141414128).

The spelling of 30020212125 in words is "thirty billion, twenty million, two hundred twelve thousand, one hundred twenty-five".