212042241 has 48 divisors (see below), whose sum is σ = 335612160. Its totient is φ = 128494080.

The previous prime is 212042231. The next prime is 212042249. The reversal of 212042241 is 142240212.

It is not a de Polignac number, because 212042241 - 2¹⁸ = 211780097 is a prime.

It is not an unprimeable number, because it can be changed into a prime (212042249) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 640446 + ... + 640776.

It is an arithmetic number, because the mean of its divisors is an integer number (6991920).

Almost surely, 2^212042241 is an apocalyptic number.

It is an amenable number.

212042241 is a deficient number, since it is larger than the sum of its proper divisors (123569919).

212042241 is a wasteful number, since it uses less digits than its factorization.

212042241 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 486 (or 483 counting only the distinct ones).

The product of its (nonzero) digits is 256, while the sum is 18.

The square root of 212042241 is about 14561.6702682076. The cubic root of 212042241 is about 596.3127956225.

Adding to 212042241 its reverse (142240212), we get a palindrome (354282453).

The spelling of 212042241 in words is "two hundred twelve million, forty-two thousand, two hundred forty-one".