121021000320010 has 64 divisors (see below), whose sum is σ = 249949549301760. Its totient is φ = 41327600762880.

The previous prime is 121021000319977. The next prime is 121021000320013. The reversal of 121021000320010 is 10023000120121.

It is not an unprimeable number, because it can be changed into a prime (121021000320013) by changing a digit.

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 31 ways as a sum of consecutive naturals, for example, 195584215 + ... + 196202005.

It is an arithmetic number, because the mean of its divisors is an integer number (3905461707840).

Almost surely, 2^{121021000320010} is an apocalyptic number.

121021000320010 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

121021000320010 is an abundant number, since it is smaller than the sum of its proper divisors (128928548981750).

121021000320010 is a wasteful number, since it uses less digits than its factorization.

121021000320010 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 628951.

The product of its (nonzero) digits is 24, while the sum is 13.

Adding to 121021000320010 its reverse (10023000120121), we get a palindrome (131044000440131).

The spelling of 121021000320010 in words is "one hundred twenty-one trillion, twenty-one billion, three hundred twenty thousand, ten".