2021221302 has 8 divisors (see below), whose sum is σ = 4042442616. Its totient is φ = 673740432.

The previous prime is 2021221253. The next prime is 2021221313. The reversal of 2021221302 is 2031221202.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

2021221302 is an admirable number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 168435103 + ... + 168435114.

It is an arithmetic number, because the mean of its divisors is an integer number (505305327).

Almost surely, 2^2021221302 is an apocalyptic number.

2021221302 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

2021221302 is a wasteful number, since it uses less digits than its factorization.

2021221302 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 336870222.

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

The square root of 2021221302 is about 44957.9948618708. The cubic root of 2021221302 is about 1264.3615752933.

Adding to 2021221302 its reverse (2031221202), we get a palindrome (4052442504).

It can be divided in two parts, 20212 and 21302, that added together give a palindrome (41514).

The spelling of 2021221302 in words is "two billion, twenty-one million, two hundred twenty-one thousand, three hundred two".