1012200000203 has 32 divisors (see below), whose sum is σ = 1237792776192. Its totient is φ = 808815110400.

The previous prime is 1012200000197. The next prime is 1012200000223. The reversal of 1012200000203 is 3020000022101.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 1012200000203 - 2⁴ = 1012200000187 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1012200000223) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 6464225 + ... + 6618957.

It is an arithmetic number, because the mean of its divisors is an integer number (38681024256).

Almost surely, 2^{1012200000203} is an apocalyptic number.

1012200000203 is a deficient number, since it is larger than the sum of its proper divisors (225592775989).

1012200000203 is a wasteful number, since it uses less digits than its factorization.

1012200000203 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 155795.

The product of its (nonzero) digits is 24, while the sum is 11.

Adding to 1012200000203 its reverse (3020000022101), we get a palindrome (4032200022304).

The spelling of 1012200000203 in words is "one trillion, twelve billion, two hundred million, two hundred three", and thus it is an aban number.