12200001000020 has 96 divisors (see below), whose sum is σ = 25781001472800. Its totient is φ = 4849464950784.

The previous prime is 12200000999983. The next prime is 12200001000043. The reversal of 12200001000020 is 2000010000221.

It can be written as a sum of positive squares in 16 ways, for example, as 7705931713936 + 4494069286084 = 2775956^2 + 2119922^2 .

It is a junction number, because it is equal to n+sod(n) for n = 12200000999971 and 12200001000007.

It is a congruent 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 31 ways as a sum of consecutive naturals, for example, 2455220096 + ... + 2455225064.

It is an arithmetic number, because the mean of its divisors is an integer number (268552098675).

Almost surely, 2^{12200001000020} is an apocalyptic number.

12200001000020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12200001000020 is an abundant number, since it is smaller than the sum of its proper divisors (13581000472780).

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

12200001000020 is a wasteful number, since it uses less digits than its factorization.

12200001000020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6477 (or 6475 counting only the distinct ones).

The product of its (nonzero) digits is 8, while the sum is 8.

Adding to 12200001000020 its reverse (2000010000221), we get a palindrome (14200011000241).

The spelling of 12200001000020 in words is "twelve trillion, two hundred billion, one million, twenty", and thus it is an aban number.