122120030 has 16 divisors (see below), whose sum is σ = 231385680. Its totient is φ = 46276992.

The previous prime is 122120023. The next prime is 122120051. The reversal of 122120030 is 30021221.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 122119993 and 122120020.

It is a congruent number.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 321179 + ... + 321558.

It is an arithmetic number, because the mean of its divisors is an integer number (14461605).

Almost surely, 2^122120030 is an apocalyptic number.

122120030 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

122120030 is a deficient number, since it is larger than the sum of its proper divisors (109265650).

122120030 is a wasteful number, since it uses less digits than its factorization.

122120030 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 642763.

The product of its (nonzero) digits is 24, while the sum is 11.

The square root of 122120030 is about 11050.7931842018. The cubic root of 122120030 is about 496.1301660411.

Adding to 122120030 its reverse (30021221), we get a palindrome (152141251).

The spelling of 122120030 in words is "one hundred twenty-two million, one hundred twenty thousand, thirty".