121112201210210 has 32 divisors (see below), whose sum is σ = 249153730997760. Its totient is φ = 41522744711232.

The previous prime is 121112201210141. The next prime is 121112201210243. The reversal of 121112201210210 is 12012102211121.

It is a Curzon number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 27934049 + ... + 31977108.

It is an arithmetic number, because the mean of its divisors is an integer number (7786054093680).

Almost surely, 2^{121112201210210} is an apocalyptic number.

121112201210210 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

121112201210210 is an abundant number, since it is smaller than the sum of its proper divisors (128041529787550).

121112201210210 is a wasteful number, since it uses less digits than its factorization.

121112201210210 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 59940050.

The product of its (nonzero) digits is 32, while the sum is 17.

Adding to 121112201210210 its reverse (12012102211121), we get a palindrome (133124303421331).

The spelling of 121112201210210 in words is "one hundred twenty-one trillion, one hundred twelve billion, two hundred one million, two hundred ten thousand, two hundred ten".