30222120251 has 2 divisors, whose sum is σ = 30222120252. Its totient is φ = 30222120250.

The previous prime is 30222120239. The next prime is 30222120263. The reversal of 30222120251 is 15202122203.

It is a balanced prime because it is at equal distance from previous prime (30222120239) and next prime (30222120263).

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-30222120251 is a prime.

It is not a weakly prime, because it can be changed into another prime (30222120211) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15111060125 + 15111060126.

It is an arithmetic number, because the mean of its divisors is an integer number (15111060126).

Almost surely, 2^30222120251 is an apocalyptic number.

30222120251 is a deficient number, since it is larger than the sum of its proper divisors (1).

30222120251 is an equidigital number, since it uses as much as digits as its factorization.

30222120251 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 480, while the sum is 20.

Adding to 30222120251 its reverse (15202122203), we get a palindrome (45424242454).

The spelling of 30222120251 in words is "thirty billion, two hundred twenty-two million, one hundred twenty thousand, two hundred fifty-one".