11001221196 has 48 divisors (see below), whose sum is σ = 29353282560. Its totient is φ = 3141417600.

The previous prime is 11001221129. The next prime is 11001221197. The reversal of 11001221196 is 69112210011.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (11001221197) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 114925 + ... + 187643.

It is an arithmetic number, because the mean of its divisors is an integer number (611526720).

Almost surely, 2^11001221196 is an apocalyptic number.

It is an amenable number.

11001221196 is an abundant number, since it is smaller than the sum of its proper divisors (18352061364).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

11001221196 is a wasteful number, since it uses less digits than its factorization.

11001221196 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 74534 (or 74532 counting only the distinct ones).

The product of its (nonzero) digits is 216, while the sum is 24.

The spelling of 11001221196 in words is "eleven billion, one million, two hundred twenty-one thousand, one hundred ninety-six".