11020012021 has 8 divisors (see below), whose sum is σ = 11330460288. Its totient is φ = 10711548000.

The previous prime is 11020012019. The next prime is 11020012039. The reversal of 11020012021 is 12021002011.

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 11020012021 - 2¹ = 11020012019 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 11020011989 and 11020012007.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11020012321) 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, 484795 + ... + 507016.

It is an arithmetic number, because the mean of its divisors is an integer number (1416307536).

Almost surely, 2^11020012021 is an apocalyptic number.

It is an amenable number.

11020012021 is a deficient number, since it is larger than the sum of its proper divisors (310448267).

11020012021 is an equidigital number, since it uses as much as digits as its factorization.

11020012021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 992123.

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

Adding to 11020012021 its reverse (12021002011), we get a palindrome (23041014032).

It can be divided in two parts, 110200 and 12021, that added together give a palindrome (122221).

The spelling of 11020012021 in words is "eleven billion, twenty million, twelve thousand, twenty-one".