1012021100201 has 4 divisors (see below), whose sum is σ = 1071551753172. Its totient is φ = 952490447232.

The previous prime is 1012021100191. The next prime is 1012021100213. The reversal of 1012021100201 is 1020011202101.

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 625166955625 + 386854144576 = 790675^2 + 621976^2 .

It is a cyclic number.

It is not a de Polignac number, because 1012021100201 - 2¹⁴ = 1012021083817 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1012021100221) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 29765326460 + ... + 29765326493.

It is an arithmetic number, because the mean of its divisors is an integer number (267887938293).

Almost surely, 2^{1012021100201} is an apocalyptic number.

It is an amenable number.

1012021100201 is a deficient number, since it is larger than the sum of its proper divisors (59530652971).

1012021100201 is an equidigital number, since it uses as much as digits as its factorization.

1012021100201 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 59530652970.

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

Adding to 1012021100201 its reverse (1020011202101), we get a palindrome (2032032302302).

The spelling of 1012021100201 in words is "one trillion, twelve billion, twenty-one million, one hundred thousand, two hundred one".