11671815222 has 24 divisors (see below), whose sum is σ = 26776517976. Its totient is φ = 3661745856.

The previous prime is 11671815217. The next prime is 11671815241. The reversal of 11671815222 is 22251817611.

It is a happy number.

11671815222 is a `hidden beast` number, since 116 + 7 + 18 + 1 + 522 + 2 = 666.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 19071288 + ... + 19071899.

It is an arithmetic number, because the mean of its divisors is an integer number (1115688249).

Almost surely, 2^11671815222 is an apocalyptic number.

11671815222 is an abundant number, since it is smaller than the sum of its proper divisors (15104702754).

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

11671815222 is a wasteful number, since it uses less digits than its factorization.

11671815222 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 38143212 (or 38143209 counting only the distinct ones).

The product of its digits is 13440, while the sum is 36.

The spelling of 11671815222 in words is "eleven billion, six hundred seventy-one million, eight hundred fifteen thousand, two hundred twenty-two".