2020221312 has 64 divisors (see below), whose sum is σ = 5511284400. Its totient is φ = 655202304.

The previous prime is 2020221293. The next prime is 2020221323. The reversal of 2020221312 is 2131220202.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (64).

It is a junction number, because it is equal to n+sod(n) for n = 2020221291 and 2020221300.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 56887 + ... + 85302.

Almost surely, 2^2020221312 is an apocalyptic number.

It is an amenable number.

2020221312 is an abundant number, since it is smaller than the sum of its proper divisors (3491063088).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

2020221312 is a wasteful number, since it uses less digits than its factorization.

2020221312 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 142243 (or 142231 counting only the distinct ones).

The product of its (nonzero) digits is 96, while the sum is 15.

The square root of 2020221312 is about 44946.8721047416. The cubic root of 2020221312 is about 1264.1530285270.

Adding to 2020221312 its reverse (2131220202), we get a palindrome (4151441514).

It can be divided in two parts, 20202 and 21312, that added together give a palindrome (41514).

The spelling of 2020221312 in words is "two billion, twenty million, two hundred twenty-one thousand, three hundred twelve".