11220021023 has 8 divisors (see below), whose sum is σ = 11725959168. Its totient is φ = 10715592184.

The previous prime is 11220021013. The next prime is 11220021041. The reversal of 11220021023 is 32012002211.

It is a happy number.

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 11220021023 - 2¹⁴ = 11220004639 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 11220020989 and 11220021007.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11220021013) 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, 362111 + ... + 391872.

It is an arithmetic number, because the mean of its divisors is an integer number (1465744896).

Almost surely, 2^11220021023 is an apocalyptic number.

11220021023 is a deficient number, since it is larger than the sum of its proper divisors (505938145).

11220021023 is an equidigital number, since it uses as much as digits as its factorization.

11220021023 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 754653.

The product of its (nonzero) digits is 48, while the sum is 14.

Adding to 11220021023 its reverse (32012002211), we get a palindrome (43232023234).

The spelling of 11220021023 in words is "eleven billion, two hundred twenty million, twenty-one thousand, twenty-three".