1011012101201 has 4 divisors (see below), whose sum is σ = 1012164909492. Its totient is φ = 1009859292912.

The previous prime is 1011012101191. The next prime is 1011012101227. The reversal of 1011012101201 is 1021012101101.

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 707053948225 + 303958152976 = 840865^2 + 551324^2 .

It is a cyclic number.

It is not a de Polignac number, because 1011012101201 - 2³⁰ = 1009938359377 is a prime.

It is a super-2 number, since 2×1011012101201² (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (1011012101291) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 576402830 + ... + 576404583.

It is an arithmetic number, because the mean of its divisors is an integer number (253041227373).

Almost surely, 2^{1011012101201} is an apocalyptic number.

It is an amenable number.

1011012101201 is a deficient number, since it is larger than the sum of its proper divisors (1152808291).

1011012101201 is an equidigital number, since it uses as much as digits as its factorization.

1011012101201 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1152808290.

The product of its (nonzero) digits is 4, while the sum is 11.

Adding to 1011012101201 its reverse (1021012101101), we get a palindrome (2032024202302).

The spelling of 1011012101201 in words is "one trillion, eleven billion, twelve million, one hundred one thousand, two hundred one".