11101221197 has 8 divisors (see below), whose sum is σ = 12111680640. Its totient is φ = 10090971360.

The previous prime is 11101221191. The next prime is 11101221227. The reversal of 11101221197 is 79112210111.

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 11101221197 - 2³⁰ = 10027479373 is a prime.

It is a super-2 number, since 2×11101221197² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11101221191) 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, 70988 + ... + 165050.

It is an arithmetic number, because the mean of its divisors is an integer number (1513960080).

Almost surely, 2^11101221197 is an apocalyptic number.

It is an amenable number.

11101221197 is a deficient number, since it is larger than the sum of its proper divisors (1010459443).

11101221197 is a wasteful number, since it uses less digits than its factorization.

11101221197 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 104803.

The product of its (nonzero) digits is 252, while the sum is 26.

The spelling of 11101221197 in words is "eleven billion, one hundred one million, two hundred twenty-one thousand, one hundred ninety-seven".