11020021201 has 4 divisors (see below), whose sum is σ = 12594309952. Its totient is φ = 9445732452.

The previous prime is 11020021193. The next prime is 11020021213. The reversal of 11020021201 is 10212002011.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 10212002011 = 227 ⋅44986793.

It is a cyclic number.

It is not a de Polignac number, because 11020021201 - 2³ = 11020021193 is a prime.

It is not an unprimeable number, because it can be changed into a prime (11020021241) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 787144365 + ... + 787144378.

It is an arithmetic number, because the mean of its divisors is an integer number (3148577488).

Almost surely, 2^11020021201 is an apocalyptic number.

It is an amenable number.

11020021201 is a deficient number, since it is larger than the sum of its proper divisors (1574288751).

11020021201 is an equidigital number, since it uses as much as digits as its factorization.

11020021201 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1574288750.

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

Adding to 11020021201 its reverse (10212002011), we get a palindrome (21232023212).

The spelling of 11020021201 in words is "eleven billion, twenty million, twenty-one thousand, two hundred one".