12121101202210 has 256 divisors, whose sum is σ = 30587126169600. Its totient is φ = 3406281742080.

The previous prime is 12121101202181. The next prime is 12121101202219. The reversal of 12121101202210 is 1220210112121.

It is not an unprimeable number, because it can be changed into a prime (12121101202219) by changing a digit.

It is a polite number, since it can be written in 127 ways as a sum of consecutive naturals, for example, 20803719 + ... + 21378421.

It is an arithmetic number, because the mean of its divisors is an integer number (119480961600).

Almost surely, 2^{12121101202210} is an apocalyptic number.

12121101202210 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

12121101202210 is an abundant number, since it is smaller than the sum of its proper divisors (18466024967390).

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

12121101202210 is a wasteful number, since it uses less digits than its factorization.

12121101202210 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 574798 (or 574784 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 16.

Adding to 12121101202210 its reverse (1220210112121), we get a palindrome (13341311314331).

The spelling of 12121101202210 in words is "twelve trillion, one hundred twenty-one billion, one hundred one million, two hundred two thousand, two hundred ten".