1001020021022 has 16 divisors (see below), whose sum is σ = 1716233443200. Its totient is φ = 428958800088.

The previous prime is 1001020021013. The next prime is 1001020021061. The reversal of 1001020021022 is 2201200201001.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 1001020020994 and 1001020021012.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4023272 + ... + 4264827.

It is an arithmetic number, because the mean of its divisors is an integer number (107264590200).

Almost surely, 2^{1001020021022} is an apocalyptic number.

1001020021022 is a deficient number, since it is larger than the sum of its proper divisors (715213422178).

1001020021022 is an equidigital number, since it uses as much as digits as its factorization.

1001020021022 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8296735.

The product of its (nonzero) digits is 16, while the sum is 11.

Adding to 1001020021022 its reverse (2201200201001), we get a palindrome (3202220222023).

The spelling of 1001020021022 in words is "one trillion, one billion, twenty million, twenty-one thousand, twenty-two".