2020221015 has 16 divisors (see below), whose sum is σ = 3237590400. Its totient is φ = 1075705632.

The previous prime is 2020221011. The next prime is 2020221019. The reversal of 2020221015 is 5101220202.

It is an interprime number because it is at equal distance from previous prime (2020221011) and next prime (2020221019).

It is not a de Polignac number, because 2020221015 - 2² = 2020221011 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (15).

It is a junction number, because it is equal to n+sod(n) for n = 2020220985 and 2020221003.

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 15 ways as a sum of consecutive naturals, for example, 99505 + ... + 118074.

It is an arithmetic number, because the mean of its divisors is an integer number (202349400).

Almost surely, 2^2020221015 is an apocalyptic number.

2020221015 is a deficient number, since it is larger than the sum of its proper divisors (1217369385).

2020221015 is a wasteful number, since it uses less digits than its factorization.

2020221015 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 218206.

The product of its (nonzero) digits is 80, while the sum is 15.

The square root of 2020221015 is about 44946.8688008408. The cubic root of 2020221015 is about 1264.1529665778.

Adding to 2020221015 its reverse (5101220202), we get a palindrome (7121441217).

The spelling of 2020221015 in words is "two billion, twenty million, two hundred twenty-one thousand, fifteen".