30420122 has 16 divisors (see below), whose sum is σ = 48271680. Its totient is φ = 14347872.

The previous prime is 30420119. The next prime is 30420161. The reversal of 30420122 is 22102403.

It is a junction number, because it is equal to n+sod(n) for n = 30420097 and 30420106.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1172 + ... + 7887.

It is an arithmetic number, because the mean of its divisors is an integer number (3016980).

Almost surely, 2^30420122 is an apocalyptic number.

30420122 is a deficient number, since it is larger than the sum of its proper divisors (17851558).

30420122 is a wasteful number, since it uses less digits than its factorization.

30420122 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9157.

The product of its (nonzero) digits is 96, while the sum is 14.

The square root of 30420122 is about 5515.4439531193. The cubic root of 30420122 is about 312.1669950307.

Adding to 30420122 its reverse (22102403), we get a palindrome (52522525).

The spelling of 30420122 in words is "thirty million, four hundred twenty thousand, one hundred twenty-two".