11202221201 has 4 divisors (see below), whose sum is σ = 11203159332. Its totient is φ = 11201283072.

The previous prime is 11202221161. The next prime is 11202221291. The reversal of 11202221201 is 10212220211.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 1967011201 + 9235210000 = 44351^2 + 96100^2 .

It is a cyclic number.

It is not a de Polignac number, because 11202221201 - 2¹⁸ = 11201959057 is a prime.

It is a super-2 number, since 2×11202221201² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (11202221291) 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, 450920 + ... + 475113.

It is an arithmetic number, because the mean of its divisors is an integer number (2800789833).

Almost surely, 2^11202221201 is an apocalyptic number.

It is an amenable number.

11202221201 is a deficient number, since it is larger than the sum of its proper divisors (938131).

11202221201 is an equidigital number, since it uses as much as digits as its factorization.

11202221201 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 938130.

The product of its (nonzero) digits is 32, while the sum is 14.

Adding to 11202221201 its reverse (10212220211), we get a palindrome (21414441412).

The spelling of 11202221201 in words is "eleven billion, two hundred two million, two hundred twenty-one thousand, two hundred one".