121221222230 has 8 divisors (see below), whose sum is σ = 218198200032. Its totient is φ = 48488488888.

The previous prime is 121221222223. The next prime is 121221222247. The reversal of 121221222230 is 32222122121.

It is a sphenic number, since it is the product of 3 distinct primes.

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 3 ways as a sum of consecutive naturals, for example, 6061061102 + ... + 6061061121.

It is an arithmetic number, because the mean of its divisors is an integer number (27274775004).

Almost surely, 2^121221222230 is an apocalyptic number.

121221222230 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

121221222230 is a deficient number, since it is larger than the sum of its proper divisors (96976977802).

121221222230 is a wasteful number, since it uses less digits than its factorization.

121221222230 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12122122230.

The product of its (nonzero) digits is 384, while the sum is 20.

Adding to 121221222230 its reverse (32222122121), we get a palindrome (153443344351).

The spelling of 121221222230 in words is "one hundred twenty-one billion, two hundred twenty-one million, two hundred twenty-two thousand, two hundred thirty".