4212115111 has 32 divisors (see below), whose sum is σ = 4675758080. Its totient is φ = 3779136000.

The previous prime is 4212115091. The next prime is 4212115139. The reversal of 4212115111 is 1115112124.

It is a 9-Lehmer number, since φ(4212115111) divides (4212115111-1)⁹.

It is a cyclic number.

It is not a de Polignac number, because 4212115111 - 2⁷ = 4212114983 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (19).

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4212115811) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 7008211 + ... + 7008811.

It is an arithmetic number, because the mean of its divisors is an integer number (146117440).

Almost surely, 2^4212115111 is an apocalyptic number.

4212115111 is the 37471-st hex number.

4212115111 is a deficient number, since it is larger than the sum of its proper divisors (463642969).

4212115111 is a wasteful number, since it uses less digits than its factorization.

4212115111 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 887.

The product of its digits is 80, while the sum is 19.

The square root of 4212115111 is about 64900.8097869356. The cubic root of 4212115111 is about 1614.9784954339.

Adding to 4212115111 its reverse (1115112124), we get a palindrome (5327227235).

The spelling of 4212115111 in words is "four billion, two hundred twelve million, one hundred fifteen thousand, one hundred eleven".