2124012111 has 12 divisors (see below), whose sum is σ = 3066621768. Its totient is φ = 1307084064.

The previous prime is 2124012103. The next prime is 2124012139. The reversal of 2124012111 is 1112104212.

It is not a de Polignac number, because 2124012111 - 2³ = 2124012103 is a prime.

It is a super-2 number, since 2×2124012111² = 9022854895349352642, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2124012311) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 2094180 + ... + 2095193.

It is an arithmetic number, because the mean of its divisors is an integer number (255551814).

Almost surely, 2^2124012111 is an apocalyptic number.

2124012111 is a deficient number, since it is larger than the sum of its proper divisors (942609657).

2124012111 is a wasteful number, since it uses less digits than its factorization.

2124012111 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4189402 (or 4189389 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 15.

The square root of 2124012111 is about 46087.0058801828. The cubic root of 2124012111 is about 1285.4415377190.

Adding to 2124012111 its reverse (1112104212), we get a palindrome (3236116323).

The spelling of 2124012111 in words is "two billion, one hundred twenty-four million, twelve thousand, one hundred eleven".