121221222303 has 8 divisors (see below), whose sum is σ = 161737289728. Its totient is φ = 80759651544.

The previous prime is 121221222301. The next prime is 121221222307. The reversal of 121221222303 is 303222122121.

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

It is not a de Polignac number, because 121221222303 - 2¹ = 121221222301 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 121221222303.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (121221222301) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 13618975 + ... + 13627872.

It is an arithmetic number, because the mean of its divisors is an integer number (20217161216).

Almost surely, 2^121221222303 is an apocalyptic number.

121221222303 is a deficient number, since it is larger than the sum of its proper divisors (40516067425).

121221222303 is a wasteful number, since it uses less digits than its factorization.

121221222303 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 27248333.

The product of its (nonzero) digits is 576, while the sum is 21.

Adding to 121221222303 its reverse (303222122121), we get a palindrome (424443344424).

The spelling of 121221222303 in words is "one hundred twenty-one billion, two hundred twenty-one million, two hundred twenty-two thousand, three hundred three".