1012202011201 has 4 divisors (see below), whose sum is σ = 1012222469332. Its totient is φ = 1012181553072.

The previous prime is 1012202011193. The next prime is 1012202011207. The reversal of 1012202011201 is 1021102022101.

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 21410712976 + 990791298225 = 146324^2 + 995385^2 .

It is a cyclic number.

It is not a de Polignac number, because 1012202011201 - 2³ = 1012202011193 is a prime.

It is a super-2 number, since 2×1012202011201² (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1012202011207) 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, 10154670 + ... + 10253863.

It is an arithmetic number, because the mean of its divisors is an integer number (253055617333).

Almost surely, 2^{1012202011201} is an apocalyptic number.

It is an amenable number.

1012202011201 is a deficient number, since it is larger than the sum of its proper divisors (20458131).

1012202011201 is an equidigital number, since it uses as much as digits as its factorization.

1012202011201 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20458130.

The product of its (nonzero) digits is 16, while the sum is 13.

Adding to 1012202011201 its reverse (1021102022101), we get a palindrome (2033304033302).

The spelling of 1012202011201 in words is "one trillion, twelve billion, two hundred two million, eleven thousand, two hundred one".