2021313221106 has 32 divisors (see below), whose sum is σ = 4359186417600. Its totient is φ = 622740913920.

The previous prime is 2021313221077. The next prime is 2021313221107. The reversal of 2021313221106 is 6011223131202.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (2021313221107) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 216224811 + ... + 216234158.

It is an arithmetic number, because the mean of its divisors is an integer number (136224575550).

Almost surely, 2^{2021313221106} is an apocalyptic number.

2021313221106 is an abundant number, since it is smaller than the sum of its proper divisors (2337873196494).

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

2021313221106 is a wasteful number, since it uses less digits than its factorization.

2021313221106 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 432459034.

The product of its (nonzero) digits is 864, while the sum is 24.

Adding to 2021313221106 its reverse (6011223131202), we get a palindrome (8032536352308).

The spelling of 2021313221106 in words is "two trillion, twenty-one billion, three hundred thirteen million, two hundred twenty-one thousand, one hundred six".