12101220210 has 32 divisors (see below), whose sum is σ = 29049288192. Its totient is φ = 3226285440.

The previous prime is 12101220149. The next prime is 12101220223. The reversal of 12101220210 is 1202210121.

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 15 ways as a sum of consecutive naturals, for example, 103182 + ... + 186678.

It is an arithmetic number, because the mean of its divisors is an integer number (907790256).

Almost surely, 2^12101220210 is an apocalyptic number.

12101220210 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

12101220210 is an abundant number, since it is smaller than the sum of its proper divisors (16948067982).

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

12101220210 is a wasteful number, since it uses less digits than its factorization.

12101220210 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 88338.

The product of its (nonzero) digits is 16, while the sum is 12.

Adding to 12101220210 its reverse (1202210121), we get a palindrome (13303430331).

The spelling of 12101220210 in words is "twelve billion, one hundred one million, two hundred twenty thousand, two hundred ten".