1012200012101 has 4 divisors (see below), whose sum is σ = 1012853467500. Its totient is φ = 1011546556704.

The previous prime is 1012200012041. The next prime is 1012200012113. The reversal of 1012200012101 is 1012100022101.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 640528108900 + 371671903201 = 800330^2 + 609649^2 .

It is a cyclic number.

It is not a de Polignac number, because 1012200012101 - 2⁶ = 1012200012037 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1012200012601) 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 3 ways as a sum of consecutive naturals, for example, 326725376 + ... + 326728473.

It is an arithmetic number, because the mean of its divisors is an integer number (253213366875).

Almost surely, 2^{1012200012101} is an apocalyptic number.

It is an amenable number.

1012200012101 is a deficient number, since it is larger than the sum of its proper divisors (653455399).

1012200012101 is an equidigital number, since it uses as much as digits as its factorization.

1012200012101 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 653455398.

The product of its (nonzero) digits is 8, while the sum is 11.

Adding to 1012200012101 its reverse (1012100022101), we get a palindrome (2024300034202).

The spelling of 1012200012101 in words is "one trillion, twelve billion, two hundred million, twelve thousand, one hundred one".