11022001021 has 8 divisors (see below), whose sum is σ = 11179715904. Its totient is φ = 10864355040.

The previous prime is 11022000937. The next prime is 11022001031. The reversal of 11022001021 is 12010022011.

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 11022001021 - 2¹⁹ = 11021476733 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 11022000989 and 11022001007.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11022001031) 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 7 ways as a sum of consecutive naturals, for example, 365121 + ... + 394153.

It is an arithmetic number, because the mean of its divisors is an integer number (1397464488).

Almost surely, 2^11022001021 is an apocalyptic number.

It is an amenable number.

11022001021 is a deficient number, since it is larger than the sum of its proper divisors (157714883).

11022001021 is an equidigital number, since it uses as much as digits as its factorization.

11022001021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 34451.

The product of its (nonzero) digits is 8, while the sum is 10.

Adding to 11022001021 its reverse (12010022011), we get a palindrome (23032023032).

The spelling of 11022001021 in words is "eleven billion, twenty-two million, one thousand, twenty-one".