3671221188 has 12 divisors (see below), whose sum is σ = 8566182800. Its totient is φ = 1223740392.

The previous prime is 3671221187. The next prime is 3671221189. The reversal of 3671221188 is 8811221763.

3671221188 is digitally balanced in base 2 and base 4, because in such bases it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (3671221187) and next prime (3671221189).

It is a tau number, because it is divible by the number of its divisors (12).

It is a super-2 number, since 2×3671221188² = 26955730022440262688, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (3671221181) 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, 152967538 + ... + 152967561.

Almost surely, 2^3671221188 is an apocalyptic number.

It is an amenable number.

3671221188 is an abundant number, since it is smaller than the sum of its proper divisors (4894961612).

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

3671221188 is a wasteful number, since it uses less digits than its factorization.

3671221188 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 305935106 (or 305935104 counting only the distinct ones).

The product of its digits is 32256, while the sum is 39.

The square root of 3671221188 is about 60590.6031328291. The cubic root of 3671221188 is about 1542.6598756067.

The spelling of 3671221188 in words is "three billion, six hundred seventy-one million, two hundred twenty-one thousand, one hundred eighty-eight".