11022111220021 has 8 divisors (see below), whose sum is σ = 12118799453184. Its totient is φ = 9941202673920.

The previous prime is 11022111219991. The next prime is 11022111220049. The reversal of 11022111220021 is 12002211122011.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 11022111220021 - 2⁵ = 11022111219989 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 11022111219977 and 11022111220004.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11022111220051) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3944920300 + ... + 3944923093.

It is an arithmetic number, because the mean of its divisors is an integer number (1514849931648).

Almost surely, 2^{11022111220021} is an apocalyptic number.

11022111220021 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

11022111220021 is a deficient number, since it is larger than the sum of its proper divisors (1096688233163).

11022111220021 is a wasteful number, since it uses less digits than its factorization.

11022111220021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7889843531.

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

Adding to 11022111220021 its reverse (12002211122011), we get a palindrome (23024322342032).

It can be divided in two parts, 1102211 and 1220021, that added together give a palindrome (2322232).

The spelling of 11022111220021 in words is "eleven trillion, twenty-two billion, one hundred eleven million, two hundred twenty thousand, twenty-one".