12211148166 has 32 divisors (see below), whose sum is σ = 28437827328. Its totient is φ = 3423070560.

The previous prime is 12211148153. The next prime is 12211148179. The reversal of 12211148166 is 66184111221.

It is an interprime number because it is at equal distance from previous prime (12211148153) and next prime (12211148179).

It is a super-2 number, since 2×12211148166² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2740620 + ... + 2745071.

It is an arithmetic number, because the mean of its divisors is an integer number (888682104).

Almost surely, 2^12211148166 is an apocalyptic number.

12211148166 is an abundant number, since it is smaller than the sum of its proper divisors (16226679162).

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

12211148166 is a wasteful number, since it uses less digits than its factorization.

12211148166 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5485756.

The product of its digits is 4608, while the sum is 33.

Adding to 12211148166 its reverse (66184111221), we get a palindrome (78395259387).

The spelling of 12211148166 in words is "twelve billion, two hundred eleven million, one hundred forty-eight thousand, one hundred sixty-six".