121321030120210 has 16 divisors (see below), whose sum is σ = 219597842232000. Its totient is φ = 48257303600176.

The previous prime is 121321030120181. The next prime is 121321030120219. The reversal of 121321030120210 is 12021030123121.

It is not an unprimeable number, because it can be changed into a prime (121321030120219) 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, 33888554110 + ... + 33888557689.

It is an arithmetic number, because the mean of its divisors is an integer number (13724865139500).

Almost surely, 2^{121321030120210} is an apocalyptic number.

121321030120210 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

121321030120210 is a deficient number, since it is larger than the sum of its proper divisors (98276812111790).

121321030120210 is a wasteful number, since it uses less digits than its factorization.

121321030120210 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 67777111985.

The product of its (nonzero) digits is 144, while the sum is 19.

Adding to 121321030120210 its reverse (12021030123121), we get a palindrome (133342060243331).

The spelling of 121321030120210 in words is "one hundred twenty-one trillion, three hundred twenty-one billion, thirty million, one hundred twenty thousand, two hundred ten".