121110201210 has 16 divisors (see below), whose sum is σ = 290664482976. Its totient is φ = 32296053648.

The previous prime is 121110201161. The next prime is 121110201221. The reversal of 121110201210 is 12102011121.

It is a Curzon number.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 2018503324 + ... + 2018503383.

It is an arithmetic number, because the mean of its divisors is an integer number (18166530186).

Almost surely, 2^121110201210 is an apocalyptic number.

121110201210 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

121110201210 is an abundant number, since it is smaller than the sum of its proper divisors (169554281766).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

121110201210 is a wasteful number, since it uses less digits than its factorization.

121110201210 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4037006717.

The product of its (nonzero) digits is 8, while the sum is 12.

Adding to 121110201210 its reverse (12102011121), we get a palindrome (133212212331).

The spelling of 121110201210 in words is "one hundred twenty-one billion, one hundred ten million, two hundred one thousand, two hundred ten".