30211222031 has 2 divisors, whose sum is σ = 30211222032. Its totient is φ = 30211222030.

The previous prime is 30211222003. The next prime is 30211222057. The reversal of 30211222031 is 13022211203.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-30211222031 is a prime.

It is a super-2 number, since 2×30211222031² (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (30211222931) 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 as a sum of consecutive naturals, namely, 15105611015 + 15105611016.

It is an arithmetic number, because the mean of its divisors is an integer number (15105611016).

Almost surely, 2^30211222031 is an apocalyptic number.

30211222031 is a deficient number, since it is larger than the sum of its proper divisors (1).

30211222031 is an equidigital number, since it uses as much as digits as its factorization.

30211222031 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 144, while the sum is 17.

Adding to 30211222031 its reverse (13022211203), we get a palindrome (43233433234).

The spelling of 30211222031 in words is "thirty billion, two hundred eleven million, two hundred twenty-two thousand, thirty-one".