121000021330 has 16 divisors (see below), whose sum is σ = 218374715520. Its totient is φ = 48272302512.

The previous prime is 121000021319. The next prime is 121000021343. The reversal of 121000021330 is 33120000121.

It is a self number, because there is not a number n which added to its sum of digits gives 121000021330.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 15959274 + ... + 15966853.

It is an arithmetic number, because the mean of its divisors is an integer number (13648419720).

Almost surely, 2^121000021330 is an apocalyptic number.

121000021330 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

121000021330 is a deficient number, since it is larger than the sum of its proper divisors (97374694190).

121000021330 is a wasteful number, since it uses less digits than its factorization.

121000021330 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 31926513.

The product of its (nonzero) digits is 36, while the sum is 13.

Adding to 121000021330 its reverse (33120000121), we get a palindrome (154120021451).

The spelling of 121000021330 in words is "one hundred twenty-one billion, twenty-one thousand, three hundred thirty".