121000221303 has 8 divisors (see below), whose sum is σ = 173743907568. Its totient is φ = 74461674624.

The previous prime is 121000221259. The next prime is 121000221313. The reversal of 121000221303 is 303122000121.

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

It is not a de Polignac number, because 121000221303 - 2¹⁶ = 121000155767 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (121000221313) 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, 1551284850 + ... + 1551284927.

It is an arithmetic number, because the mean of its divisors is an integer number (21717988446).

Almost surely, 2^121000221303 is an apocalyptic number.

121000221303 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

121000221303 is a deficient number, since it is larger than the sum of its proper divisors (52743686265).

121000221303 is a wasteful number, since it uses less digits than its factorization.

121000221303 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3102569793.

The product of its (nonzero) digits is 72, while the sum is 15.

Adding to 121000221303 its reverse (303122000121), we get a palindrome (424122221424).

The spelling of 121000221303 in words is "one hundred twenty-one billion, two hundred twenty-one thousand, three hundred three".