30211301310221 has 16 divisors (see below), whose sum is σ = 31097695039488. Its totient is φ = 29328595617600.

The previous prime is 30211301310161. The next prime is 30211301310227. The reversal of 30211301310221 is 12201310311203.

It is a happy number.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-30211301310221 is a prime.

It is a super-2 number, since 2×30211301310221² (a number of 28 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 30211301310193 and 30211301310202.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30211301310227) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 227320436 + ... + 227453298.

It is an arithmetic number, because the mean of its divisors is an integer number (1943605939968).

Almost surely, 2^{30211301310221} is an apocalyptic number.

It is an amenable number.

30211301310221 is a deficient number, since it is larger than the sum of its proper divisors (886393729267).

30211301310221 is a wasteful number, since it uses less digits than its factorization.

30211301310221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 146692.

The product of its (nonzero) digits is 216, while the sum is 20.

Adding to 30211301310221 its reverse (12201310311203), we get a palindrome (42412611621424).

The spelling of 30211301310221 in words is "thirty trillion, two hundred eleven billion, three hundred one million, three hundred ten thousand, two hundred twenty-one".