30102213021 has 16 divisors (see below), whose sum is σ = 42935364864. Its totient is φ = 18692941824.

The previous prime is 30102213007. The next prime is 30102213049. The reversal of 30102213021 is 12031220103.

It is not a de Polignac number, because 30102213021 - 2⁶ = 30102212957 is a prime.

It is a super-2 number, since 2×30102213021² (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30102213221) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3037525 + ... + 3047418.

It is an arithmetic number, because the mean of its divisors is an integer number (2683460304).

Almost surely, 2^30102213021 is an apocalyptic number.

It is an amenable number.

30102213021 is a deficient number, since it is larger than the sum of its proper divisors (12833151843).

30102213021 is a wasteful number, since it uses less digits than its factorization.

30102213021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6085060.

The product of its (nonzero) digits is 72, while the sum is 15.

Adding to 30102213021 its reverse (12031220103), we get a palindrome (42133433124).

The spelling of 30102213021 in words is "thirty billion, one hundred two million, two hundred thirteen thousand, twenty-one".