11022221101021 has 4 divisors (see below), whose sum is σ = 11870084262652. Its totient is φ = 10174357939392.

The previous prime is 11022221100977. The next prime is 11022221101027. The reversal of 11022221101021 is 12010112222011.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 3147945320025 + 7874275780996 = 1774245^2 + 2806114^2 .

It is a cyclic number.

It is not a de Polignac number, because 11022221101021 - 2¹⁵ = 11022221068253 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 11022221100986 and 11022221101004.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11022221101027) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 423931580796 + ... + 423931580821.

It is an arithmetic number, because the mean of its divisors is an integer number (2967521065663).

Almost surely, 2^{11022221101021} is an apocalyptic number.

It is an amenable number.

11022221101021 is a deficient number, since it is larger than the sum of its proper divisors (847863161631).

11022221101021 is an equidigital number, since it uses as much as digits as its factorization.

11022221101021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 847863161630.

The product of its (nonzero) digits is 32, while the sum is 16.

Adding to 11022221101021 its reverse (12010112222011), we get a palindrome (23032333323032).

The spelling of 11022221101021 in words is "eleven trillion, twenty-two billion, two hundred twenty-one million, one hundred one thousand, twenty-one".