30133212021 has 24 divisors (see below), whose sum is σ = 47488205856. Its totient is φ = 18260411040.

The previous prime is 30133211959. The next prime is 30133212029. The reversal of 30133212021 is 12021233103.

30133212021 is a `hidden beast` number, since 301 + 3 + 321 + 20 + 21 = 666.

It is not a de Polignac number, because 30133212021 - 2⁹ = 30133211509 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 30133211985 and 30133212003.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30133212029) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1383411 + ... + 1405023.

It is an arithmetic number, because the mean of its divisors is an integer number (1978675244).

Almost surely, 2^30133212021 is an apocalyptic number.

It is an amenable number.

30133212021 is a deficient number, since it is larger than the sum of its proper divisors (17354993835).

30133212021 is a wasteful number, since it uses less digits than its factorization.

30133212021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 35713 (or 35710 counting only the distinct ones).

The product of its (nonzero) digits is 216, while the sum is 18.

Adding to 30133212021 its reverse (12021233103), we get a palindrome (42154445124).

The spelling of 30133212021 in words is "thirty billion, one hundred thirty-three million, two hundred twelve thousand, twenty-one".