2124212011 has 4 divisors (see below), whose sum is σ = 2124590832. Its totient is φ = 2123833192.

The previous prime is 2124211937. The next prime is 2124212071. The reversal of 2124212011 is 1102124212.

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

It is a cyclic number.

It is not a de Polignac number, because 2124212011 - 2²⁷ = 1989994283 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2124212071) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 180871 + ... + 192256.

It is an arithmetic number, because the mean of its divisors is an integer number (531147708).

Almost surely, 2^2124212011 is an apocalyptic number.

2124212011 is a deficient number, since it is larger than the sum of its proper divisors (378821).

2124212011 is an equidigital number, since it uses as much as digits as its factorization.

2124212011 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 378820.

The product of its (nonzero) digits is 64, while the sum is 16.

The square root of 2124212011 is about 46089.1745532506. The cubic root of 2124212011 is about 1285.4818626150.

Adding to 2124212011 its reverse (1102124212), we get a palindrome (3226336223).

The spelling of 2124212011 in words is "two billion, one hundred twenty-four million, two hundred twelve thousand, eleven".