30112011221251 has 2 divisors, whose sum is σ = 30112011221252. Its totient is φ = 30112011221250.

The previous prime is 30112011221249. The next prime is 30112011221287. The reversal of 30112011221251 is 15212211021103.

It is a weak prime.

It is an emirp because it is prime and its reverse (15212211021103) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 30112011221251 - 2¹ = 30112011221249 is a prime.

It is a super-2 number, since 2×30112011221251² (a number of 28 digits) contains 22 as substring.

Together with 30112011221249, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (30112011221651) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15056005610625 + 15056005610626.

It is an arithmetic number, because the mean of its divisors is an integer number (15056005610626).

Almost surely, 2^{30112011221251} is an apocalyptic number.

30112011221251 is a deficient number, since it is larger than the sum of its proper divisors (1).

30112011221251 is an equidigital number, since it uses as much as digits as its factorization.

30112011221251 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 240, while the sum is 22.

Adding to 30112011221251 its reverse (15212211021103), we get a palindrome (45324222242354).

The spelling of 30112011221251 in words is "thirty trillion, one hundred twelve billion, eleven million, two hundred twenty-one thousand, two hundred fifty-one".