11201122997 has 4 divisors (see below), whose sum is σ = 11201424000. Its totient is φ = 11200821996.

The previous prime is 11201122969. The next prime is 11201123023. The reversal of 11201122997 is 79922110211.

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.

It is a cyclic number.

It is not a de Polignac number, because 11201122997 - 2²² = 11196928693 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11201122927) 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, 85253 + ... + 172250.

It is an arithmetic number, because the mean of its divisors is an integer number (2800356000).

Almost surely, 2^11201122997 is an apocalyptic number.

It is an amenable number.

11201122997 is a deficient number, since it is larger than the sum of its proper divisors (301003).

11201122997 is an equidigital number, since it uses as much as digits as its factorization.

11201122997 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 301002.

The product of its (nonzero) digits is 4536, while the sum is 35.

The spelling of 11201122997 in words is "eleven billion, two hundred one million, one hundred twenty-two thousand, nine hundred ninety-seven".