30100122 has 48 divisors (see below), whose sum is σ = 70630560. Its totient is φ = 9209376.

The previous prime is 30100111. The next prime is 30100141. The reversal of 30100122 is 22100103.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (9).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 71629 + ... + 72047.

It is an arithmetic number, because the mean of its divisors is an integer number (1471470).

Almost surely, 2^30100122 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 30100122, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (35315280).

30100122 is an abundant number, since it is smaller than the sum of its proper divisors (40530438).

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

30100122 is a wasteful number, since it uses less digits than its factorization.

30100122 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 747 (or 744 counting only the distinct ones).

The product of its (nonzero) digits is 12, while the sum is 9.

The square root of 30100122 is about 5486.3578082367. The cubic root of 30100122 is about 311.0685360201.

Adding to 30100122 its reverse (22100103), we get a palindrome (52200225).

The spelling of 30100122 in words is "thirty million, one hundred thousand, one hundred twenty-two".