30312230221211 has 4 divisors (see below), whose sum is σ = 30320337267000. Its totient is φ = 30304123175424.

The previous prime is 30312230221187. The next prime is 30312230221223. The reversal of 30312230221211 is 11212203221303.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-30312230221211 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (30312230241211) 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, 4053517286 + ... + 4053524763.

It is an arithmetic number, because the mean of its divisors is an integer number (7580084316750).

Almost surely, 2^{30312230221211} is an apocalyptic number.

30312230221211 is a deficient number, since it is larger than the sum of its proper divisors (8107045789).

30312230221211 is an equidigital number, since it uses as much as digits as its factorization.

30312230221211 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8107045788.

The product of its (nonzero) digits is 864, while the sum is 23.

Adding to 30312230221211 its reverse (11212203221303), we get a palindrome (41524433442514).

The spelling of 30312230221211 in words is "thirty trillion, three hundred twelve billion, two hundred thirty million, two hundred twenty-one thousand, two hundred eleven".