30122412021 has 12 divisors (see below), whose sum is σ = 46857085548. Its totient is φ = 18536868864.

The previous prime is 30122411989. The next prime is 30122412037. The reversal of 30122412021 is 12021422103.

It is a happy number.

30122412021 is a `hidden beast` number, since 301 + 224 + 120 + 21 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 19741655025 + 10380756996 = 140505^2 + 101886^2 .

It is not a de Polignac number, because 30122412021 - 2⁵ = 30122411989 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 30122411985 and 30122412003.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30122402021) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 128728140 + ... + 128728373.

It is an arithmetic number, because the mean of its divisors is an integer number (3904757129).

Almost surely, 2^30122412021 is an apocalyptic number.

It is an amenable number.

30122412021 is a deficient number, since it is larger than the sum of its proper divisors (16734673527).

30122412021 is a wasteful number, since it uses less digits than its factorization.

30122412021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 257456532 (or 257456529 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 18.

Adding to 30122412021 its reverse (12021422103), we get a palindrome (42143834124).

The spelling of 30122412021 in words is "thirty billion, one hundred twenty-two million, four hundred twelve thousand, twenty-one".