2021312202 has 32 divisors (see below), whose sum is σ = 4975539072. Its totient is φ = 533093184.

The previous prime is 2021312191. The next prime is 2021312203. The reversal of 2021312202 is 2022131202.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (2021312203) 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, 1850473 + ... + 1851564.

It is an arithmetic number, because the mean of its divisors is an integer number (155485596).

Almost surely, 2^2021312202 is an apocalyptic number.

2021312202 is an abundant number, since it is smaller than the sum of its proper divisors (2954226870).

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

2021312202 is a wasteful number, since it uses less digits than its factorization.

2021312202 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3702062.

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

The square root of 2021312202 is about 44959.0057941676. The cubic root of 2021312202 is about 1264.3805289731.

Adding to 2021312202 its reverse (2022131202), we get a palindrome (4043443404).

The spelling of 2021312202 in words is "two billion, twenty-one million, three hundred twelve thousand, two hundred two".