4155511222 has 4 divisors (see below), whose sum is σ = 6233266836. Its totient is φ = 2077755610.

The previous prime is 4155511211. The next prime is 4155511231. The reversal of 4155511222 is 2221155514.

It is a semiprime because it is the product of two primes.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1038877804 + ... + 1038877807.

It is an arithmetic number, because the mean of its divisors is an integer number (1558316709).

Almost surely, 2^4155511222 is an apocalyptic number.

4155511222 is a deficient number, since it is larger than the sum of its proper divisors (2077755614).

4155511222 is a wasteful number, since it uses less digits than its factorization.

4155511222 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2077755613.

The product of its digits is 4000, while the sum is 28.

The square root of 4155511222 is about 64463.2548200911. The cubic root of 4155511222 is about 1607.7116290530.

Adding to 4155511222 its reverse (2221155514), we get a palindrome (6376666736).

The spelling of 4155511222 in words is "four billion, one hundred fifty-five million, five hundred eleven thousand, two hundred twenty-two".