12200121002220 has 96 divisors (see below), whose sum is σ = 35139195227136. Its totient is φ = 3160419897600.

The previous prime is 12200121002171. The next prime is 12200121002233. The reversal of 12200121002220 is 2220012100221.

12200121002220 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (15).

It is a self number, because there is not a number n which added to its sum of digits gives 12200121002220.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 2953816 + ... + 5755455.

It is an arithmetic number, because the mean of its divisors is an integer number (366033283616).

Almost surely, 2^{12200121002220} is an apocalyptic number.

12200121002220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12200121002220 is an abundant number, since it is smaller than the sum of its proper divisors (22939074224916).

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

12200121002220 is a wasteful number, since it uses less digits than its factorization.

12200121002220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8709951 (or 8709949 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 15.

Adding to 12200121002220 its reverse (2220012100221), we get a palindrome (14420133102441).

The spelling of 12200121002220 in words is "twelve trillion, two hundred billion, one hundred twenty-one million, two thousand, two hundred twenty".