121210203230 has 16 divisors (see below), whose sum is σ = 220940118720. Its totient is φ = 47870358432.

The previous prime is 121210203229. The next prime is 121210203341. The reversal of 121210203230 is 32302012121.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 121210203199 and 121210203208.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 76714529 + ... + 76716108.

It is an arithmetic number, because the mean of its divisors is an integer number (13808757420).

Almost surely, 2^121210203230 is an apocalyptic number.

121210203230 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

121210203230 is a deficient number, since it is larger than the sum of its proper divisors (99729915490).

121210203230 is a wasteful number, since it uses less digits than its factorization.

121210203230 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 153430723.

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

Adding to 121210203230 its reverse (32302012121), we get a palindrome (153512215351).

The spelling of 121210203230 in words is "one hundred twenty-one billion, two hundred ten million, two hundred three thousand, two hundred thirty".