12101200221220 has 48 divisors (see below), whose sum is σ = 27782885946816. Its totient is φ = 4390890992000.

The previous prime is 12101200221109. The next prime is 12101200221223. The reversal of 12101200221220 is 2212200210121.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 12101200221194 and 12101200221203.

It is not an unprimeable number, because it can be changed into a prime (12101200221223) by changing a digit.

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, 59557426 + ... + 59760265.

It is an arithmetic number, because the mean of its divisors is an integer number (578810123892).

Almost surely, 2^{12101200221220} is an apocalyptic number.

12101200221220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12101200221220 is an abundant number, since it is smaller than the sum of its proper divisors (15681685725596).

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

12101200221220 is a wasteful number, since it uses less digits than its factorization.

12101200221220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 119318172 (or 119318170 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 16.

Adding to 12101200221220 its reverse (2212200210121), we get a palindrome (14313400431341).

The spelling of 12101200221220 in words is "twelve trillion, one hundred one billion, two hundred million, two hundred twenty-one thousand, two hundred twenty".