12101221002200 has 96 divisors (see below), whose sum is σ = 31062893722560. Its totient is φ = 4347426537600.

The previous prime is 12101221002161. The next prime is 12101221002209. The reversal of 12101221002200 is 220012210121.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12101221002209) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 32953274 + ... + 33318473.

It is an arithmetic number, because the mean of its divisors is an integer number (323571809610).

Almost surely, 2^{12101221002200} is an apocalyptic number.

12101221002200 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12101221002200 is an abundant number, since it is smaller than the sum of its proper divisors (18961672720360).

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

12101221002200 is a wasteful number, since it uses less digits than its factorization.

12101221002200 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 66271857 (or 66271848 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 14.

Adding to 12101221002200 its reverse (220012210121), we get a palindrome (12321233212321).

The spelling of 12101221002200 in words is "twelve trillion, one hundred one billion, two hundred twenty-one million, two thousand, two hundred".