121021020230 has 32 divisors (see below), whose sum is σ = 238499246880. Its totient is φ = 43848760320.

The previous prime is 121021020229. The next prime is 121021020317. The reversal of 121021020230 is 32020120121.

It is a happy number.

It is a congruent number.

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 15 ways as a sum of consecutive naturals, for example, 1955435 + ... + 2016374.

It is an arithmetic number, because the mean of its divisors is an integer number (7453101465).

Almost surely, 2^121021020230 is an apocalyptic number.

121021020230 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

121021020230 is a deficient number, since it is larger than the sum of its proper divisors (117478226650).

121021020230 is a wasteful number, since it uses less digits than its factorization.

121021020230 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3972104.

The product of its (nonzero) digits is 48, while the sum is 14.

Adding to 121021020230 its reverse (32020120121), we get a palindrome (153041140351).

The spelling of 121021020230 in words is "one hundred twenty-one billion, twenty-one million, twenty thousand, two hundred thirty".