10002220112221 has 4 divisors (see below), whose sum is σ = 10004374374912. Its totient is φ = 10000065849532.

The previous prime is 10002220112197. The next prime is 10002220112257. The reversal of 10002220112221 is 12221102220001.

It is a happy number.

10002220112221 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 10002220112221 - 2⁵ = 10002220112189 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 10002220112195 and 10002220112204.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10002220112281) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1077124381 + ... + 1077133666.

It is an arithmetic number, because the mean of its divisors is an integer number (2501093593728).

Almost surely, 2^{10002220112221} is an apocalyptic number.

It is an amenable number.

10002220112221 is a deficient number, since it is larger than the sum of its proper divisors (2154262691).

10002220112221 is an equidigital number, since it uses as much as digits as its factorization.

10002220112221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2154262690.

The product of its (nonzero) digits is 64, while the sum is 16.

Adding to 10002220112221 its reverse (12221102220001), we get a palindrome (22223322332222).

The spelling of 10002220112221 in words is "ten trillion, two billion, two hundred twenty million, one hundred twelve thousand, two hundred twenty-one".