30100211021 has 4 divisors (see below), whose sum is σ = 31408915872. Its totient is φ = 28791506172.

The previous prime is 30100211017. The next prime is 30100211147. The reversal of 30100211021 is 12011200103.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 30100211021 - 2² = 30100211017 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 30100210993 and 30100211011.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30100261021) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 654352391 + ... + 654352436.

It is an arithmetic number, because the mean of its divisors is an integer number (7852228968).

Almost surely, 2^30100211021 is an apocalyptic number.

It is an amenable number.

30100211021 is a deficient number, since it is larger than the sum of its proper divisors (1308704851).

30100211021 is a wasteful number, since it uses less digits than its factorization.

30100211021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1308704850.

The product of its (nonzero) digits is 12, while the sum is 11.

Adding to 30100211021 its reverse (12011200103), we get a palindrome (42111411124).

The spelling of 30100211021 in words is "thirty billion, one hundred million, two hundred eleven thousand, twenty-one".