212111142411 has 16 divisors (see below), whose sum is σ = 323434974464. Its totient is φ = 121124618784.

The previous prime is 212111142401. The next prime is 212111142433. The reversal of 212111142411 is 114241111212.

212111142411 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 212111142411 - 2¹⁴ = 212111126027 is a prime.

It is a super-2 number, since 2×212111142411² (a number of 23 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is not an unprimeable number, because it can be changed into a prime (212111142401) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3374296 + ... + 3436581.

It is an arithmetic number, because the mean of its divisors is an integer number (20214685904).

Almost surely, 2^212111142411 is an apocalyptic number.

212111142411 is a gapful number since it is divisible by the number (21) formed by its first and last digit.

212111142411 is a deficient number, since it is larger than the sum of its proper divisors (111323832053).

212111142411 is a wasteful number, since it uses less digits than its factorization.

212111142411 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6812370.

The product of its digits is 128, while the sum is 21.

Adding to 212111142411 its reverse (114241111212), we get a palindrome (326352253623).

The spelling of 212111142411 in words is "two hundred twelve billion, one hundred eleven million, one hundred forty-two thousand, four hundred eleven".