2021131201 has 4 divisors (see below), whose sum is σ = 2021293504. Its totient is φ = 2020968900.

The previous prime is 2021131159. The next prime is 2021131247. The reversal of 2021131201 is 1021311202.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 2021131201 - 2⁹ = 2021130689 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2021131261) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 60765 + ... + 87946.

It is an arithmetic number, because the mean of its divisors is an integer number (505323376).

Almost surely, 2^2021131201 is an apocalyptic number.

It is an amenable number.

2021131201 is a deficient number, since it is larger than the sum of its proper divisors (162303).

2021131201 is a wasteful number, since it uses less digits than its factorization.

2021131201 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 162302.

The product of its (nonzero) digits is 24, while the sum is 13.

The square root of 2021131201 is about 44956.9927931128. The cubic root of 2021131201 is about 1264.3427876532.

Adding to 2021131201 its reverse (1021311202), we get a palindrome (3042442403).

The spelling of 2021131201 in words is "two billion, twenty-one million, one hundred thirty-one thousand, two hundred one".