10002220201021 has 4 divisors (see below), whose sum is σ = 10528652843200. Its totient is φ = 9475787558844.

The previous prime is 10002220200997. The next prime is 10002220201063. The reversal of 10002220201021 is 12010202220001.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 10002220201021 - 2¹⁵ = 10002220168253 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 10002220200992 and 10002220201010.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10002220204021) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 263216321061 + ... + 263216321098.

It is an arithmetic number, because the mean of its divisors is an integer number (2632163210800).

Almost surely, 2^{10002220201021} is an apocalyptic number.

It is an amenable number.

10002220201021 is a deficient number, since it is larger than the sum of its proper divisors (526432642179).

10002220201021 is an equidigital number, since it uses as much as digits as its factorization.

10002220201021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 526432642178.

The product of its (nonzero) digits is 32, while the sum is 13.

Adding to 10002220201021 its reverse (12010202220001), we get a palindrome (22012422421022).

The spelling of 10002220201021 in words is "ten trillion, two billion, two hundred twenty million, two hundred one thousand, twenty-one".