30210111111221 has 8 divisors (see below), whose sum is σ = 31803457147200. Its totient is φ = 28617099094080.

The previous prime is 30210111111209. The next prime is 30210111111223. The reversal of 30210111111221 is 12211111101203.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 30210111111221 - 2²² = 30210106916917 is a prime.

It is a super-2 number, since 2×30210111111221² (a number of 28 digits) contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 30210111111221.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30210111111223) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 83319041 + ... + 83680838.

It is an arithmetic number, because the mean of its divisors is an integer number (3975432143400).

Almost surely, 2^{30210111111221} is an apocalyptic number.

It is an amenable number.

30210111111221 is a deficient number, since it is larger than the sum of its proper divisors (1593346035979).

30210111111221 is a wasteful number, since it uses less digits than its factorization.

30210111111221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 167009419.

The product of its (nonzero) digits is 24, while the sum is 17.

Adding to 30210111111221 its reverse (12211111101203), we get a palindrome (42421222212424).

The spelling of 30210111111221 in words is "thirty trillion, two hundred ten billion, one hundred eleven million, one hundred eleven thousand, two hundred twenty-one".