4011212111 has 16 divisors (see below), whose sum is σ = 4204418400. Its totient is φ = 3821841408.

The previous prime is 4011212077. The next prime is 4011212119. The reversal of 4011212111 is 1112121104.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-4011212111 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4011212119) 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, 1658375 + ... + 1660791.

It is an arithmetic number, because the mean of its divisors is an integer number (262776150).

Almost surely, 2^4011212111 is an apocalyptic number.

4011212111 is a deficient number, since it is larger than the sum of its proper divisors (193206289).

4011212111 is a wasteful number, since it uses less digits than its factorization.

4011212111 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3178.

The product of its (nonzero) digits is 16, while the sum is 14.

The square root of 4011212111 is about 63334.1306958578. The cubic root of 4011212111 is about 1588.8828447270.

Adding to 4011212111 its reverse (1112121104), we get a palindrome (5123333215).

The spelling of 4011212111 in words is "four billion, eleven million, two hundred twelve thousand, one hundred eleven".