2021211330 has 16 divisors (see below), whose sum is σ = 4850907264. Its totient is φ = 538989680.

The previous prime is 2021211323. The next prime is 2021211331. The reversal of 2021211330 is 331121202.

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

It is not an unprimeable number, because it can be changed into a prime (2021211331) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 33686826 + ... + 33686885.

It is an arithmetic number, because the mean of its divisors is an integer number (303181704).

Almost surely, 2^2021211330 is an apocalyptic number.

2021211330 is an abundant number, since it is smaller than the sum of its proper divisors (2829695934).

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

2021211330 is a wasteful number, since it uses less digits than its factorization.

2021211330 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 67373721.

The product of its (nonzero) digits is 72, while the sum is 15.

The square root of 2021211330 is about 44957.8839582114. The cubic root of 2021211330 is about 1264.3594959837.

Adding to 2021211330 its reverse (331121202), we get a palindrome (2352332532).

The spelling of 2021211330 in words is "two billion, twenty-one million, two hundred eleven thousand, three hundred thirty".