30212112211 has 4 divisors (see below), whose sum is σ = 31802223400. Its totient is φ = 28622001024.

The previous prime is 30212112199. The next prime is 30212112221. The reversal of 30212112211 is 11221121203.

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-30212112211 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (30212112221) 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 3 ways as a sum of consecutive naturals, for example, 795055566 + ... + 795055603.

It is an arithmetic number, because the mean of its divisors is an integer number (7950555850).

Almost surely, 2^30212112211 is an apocalyptic number.

30212112211 is a deficient number, since it is larger than the sum of its proper divisors (1590111189).

30212112211 is a wasteful number, since it uses less digits than its factorization.

30212112211 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1590111188.

The product of its (nonzero) digits is 48, while the sum is 16.

Adding to 30212112211 its reverse (11221121203), we get a palindrome (41433233414).

The spelling of 30212112211 in words is "thirty billion, two hundred twelve million, one hundred twelve thousand, two hundred eleven".