4212111155 has 16 divisors (see below), whose sum is σ = 5797035264. Its totient is φ = 2878092000.

The previous prime is 4212111151. The next prime is 4212111161. The reversal of 4212111155 is 5511112124.

It is a happy number.

It is not a de Polignac number, because 4212111155 - 2² = 4212111151 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 4212111155.

It is not an unprimeable number, because it can be changed into a prime (4212111151) 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, 202721 + ... + 222530.

It is an arithmetic number, because the mean of its divisors is an integer number (362314704).

Almost surely, 2^4212111155 is an apocalyptic number.

4212111155 is a deficient number, since it is larger than the sum of its proper divisors (1584924109).

4212111155 is a wasteful number, since it uses less digits than its factorization.

4212111155 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 425546.

The product of its digits is 400, while the sum is 23.

The square root of 4212111155 is about 64900.7793096508. The cubic root of 4212111155 is about 1614.9779898402.

Adding to 4212111155 its reverse (5511112124), we get a palindrome (9723223279).

The spelling of 4212111155 in words is "four billion, two hundred twelve million, one hundred eleven thousand, one hundred fifty-five".