11201210209 has 32 divisors (see below), whose sum is σ = 13335920640. Its totient is φ = 9209116800.

The previous prime is 11201210131. The next prime is 11201210213. The reversal of 11201210209 is 90201210211.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 11201210209 - 2⁷ = 11201210081 is a prime.

It is a super-2 number, since 2×11201210209² (a number of 21 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (11201210609) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 6143472 + ... + 6145294.

It is an arithmetic number, because the mean of its divisors is an integer number (416747520).

Almost surely, 2^11201210209 is an apocalyptic number.

It is an amenable number.

11201210209 is a deficient number, since it is larger than the sum of its proper divisors (2134710431).

11201210209 is a wasteful number, since it uses less digits than its factorization.

11201210209 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2221.

The product of its (nonzero) digits is 72, while the sum is 19.

It can be divided in two parts, 112012 and 10209, that added together give a palindrome (122221).

The spelling of 11201210209 in words is "eleven billion, two hundred one million, two hundred ten thousand, two hundred nine".