121220121223030 has 32 divisors (see below), whose sum is σ = 220667377222080. Its totient is φ = 47940256291200.

The previous prime is 121220121222989. The next prime is 121220121223093. The reversal of 121220121223030 is 30322121022121.

121220121223030 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a junction number, because it is equal to n+sod(n) for n = 121220121222992 and 121220121223010.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 83924194 + ... + 85356373.

It is an arithmetic number, because the mean of its divisors is an integer number (6895855538190).

Almost surely, 2^{121220121223030} is an apocalyptic number.

121220121223030 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

121220121223030 is a deficient number, since it is larger than the sum of its proper divisors (99447255999050).

121220121223030 is a wasteful number, since it uses less digits than its factorization.

121220121223030 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 169281384.

The product of its (nonzero) digits is 576, while the sum is 22.

Adding to 121220121223030 its reverse (30322121022121), we get a palindrome (151542242245151).

The spelling of 121220121223030 in words is "one hundred twenty-one trillion, two hundred twenty billion, one hundred twenty-one million, two hundred twenty-three thousand, thirty".