2021211430 has 32 divisors (see below), whose sum is σ = 4402506816. Its totient is φ = 652222464.

The previous prime is 2021211403. The next prime is 2021211433. The reversal of 2021211430 is 341121202.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2021211433) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 848059 + ... + 850438.

It is an arithmetic number, because the mean of its divisors is an integer number (137578338).

Almost surely, 2^2021211430 is an apocalyptic number.

2021211430 is an abundant number, since it is smaller than the sum of its proper divisors (2381295386).

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

2021211430 is a wasteful number, since it uses less digits than its factorization.

2021211430 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1698528.

The product of its (nonzero) digits is 96, while the sum is 16.

The square root of 2021211430 is about 44957.8850703634. The cubic root of 2021211430 is about 1264.3595168352.

Adding to 2021211430 its reverse (341121202), we get a palindrome (2362332632).

The spelling of 2021211430 in words is "two billion, twenty-one million, two hundred eleven thousand, four hundred thirty".