1020201211 has 4 divisors (see below), whose sum is σ = 1020369424. Its totient is φ = 1020033000.

The previous prime is 1020201197. The next prime is 1020201253. The reversal of 1020201211 is 1121020201.

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

It is a cyclic number.

It is not a de Polignac number, because 1020201211 - 2²³ = 1011812603 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1020201311) 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, 74655 + ... + 87256.

It is an arithmetic number, because the mean of its divisors is an integer number (255092356).

Almost surely, 2^1020201211 is an apocalyptic number.

1020201211 is a deficient number, since it is larger than the sum of its proper divisors (168213).

1020201211 is an equidigital number, since it uses as much as digits as its factorization.

1020201211 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 168212.

The product of its (nonzero) digits is 8, while the sum is 10.

The square root of 1020201211 is about 31940.5887704031. The cubic root of 1020201211 is about 1006.6888959147.

Adding to 1020201211 its reverse (1121020201), we get a palindrome (2141221412).

The spelling of 1020201211 in words is "one billion, twenty million, two hundred one thousand, two hundred eleven".