212124011 has 12 divisors (see below), whose sum is σ = 246878856. Its totient is φ = 181494720.

The previous prime is 212123993. The next prime is 212124043. The reversal of 212124011 is 110421212.

It is a happy number.

It is not a de Polignac number, because 212124011 - 2²² = 207929707 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (212126011) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 49505 + ... + 53618.

It is an arithmetic number, because the mean of its divisors is an integer number (20573238).

Almost surely, 2^212124011 is an apocalyptic number.

212124011 is a deficient number, since it is larger than the sum of its proper divisors (34754845).

212124011 is a wasteful number, since it uses less digits than its factorization.

212124011 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 103162 (or 103151 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 14.

The square root of 212124011 is about 14564.4777111986. The cubic root of 212124011 is about 596.3894379471.

Adding to 212124011 its reverse (110421212), we get a palindrome (322545223).

The spelling of 212124011 in words is "two hundred twelve million, one hundred twenty-four thousand, eleven".