1010020201 has 4 divisors (see below), whose sum is σ = 1069433172. Its totient is φ = 950607232.

The previous prime is 1010020171. The next prime is 1010020213. The reversal of 1010020201 is 1020200101.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 1020200101 = 19051 ⋅53551.

It can be written as a sum of positive squares in 2 ways, for example, as 491774976 + 518245225 = 22176^2 + 22765^2 .

It is a cyclic number.

It is not a de Polignac number, because 1010020201 - 2⁷ = 1010020073 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1010020241) 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, 29706460 + ... + 29706493.

It is an arithmetic number, because the mean of its divisors is an integer number (267358293).

Almost surely, 2^1010020201 is an apocalyptic number.

It is an amenable number.

1010020201 is a deficient number, since it is larger than the sum of its proper divisors (59412971).

1010020201 is an equidigital number, since it uses as much as digits as its factorization.

1010020201 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 59412970.

The product of its (nonzero) digits is 4, while the sum is 7.

The square root of 1010020201 is about 31780.8149832568. The cubic root of 1010020201 is about 1003.3289726438.

Adding to 1010020201 its reverse (1020200101), we get a palindrome (2030220302).

It can be divided in two parts, 10100 and 20201, that multiplied together give a triangular number (204030100 = T₂₀₂₀₀).

The spelling of 1010020201 in words is "one billion, ten million, twenty thousand, two hundred one".