2020221031 has 4 divisors (see below), whose sum is σ = 2108056752. Its totient is φ = 1932385312.

The previous prime is 2020221019. The next prime is 2020221067. The reversal of 2020221031 is 1301220202.

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 2020221031 - 2⁹ = 2020220519 is a prime.

It is a super-2 number, since 2×2020221031² = 8162586028189405922, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2020221011) 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, 43917826 + ... + 43917871.

It is an arithmetic number, because the mean of its divisors is an integer number (527014188).

Almost surely, 2^2020221031 is an apocalyptic number.

2020221031 is a deficient number, since it is larger than the sum of its proper divisors (87835721).

2020221031 is an equidigital number, since it uses as much as digits as its factorization.

2020221031 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 87835720.

The product of its (nonzero) digits is 48, while the sum is 13.

The square root of 2020221031 is about 44946.8689788288. The cubic root of 2020221031 is about 1264.1529699151.

Adding to 2020221031 its reverse (1301220202), we get a palindrome (3321441233).

The spelling of 2020221031 in words is "two billion, twenty million, two hundred twenty-one thousand, thirty-one".