212120541 has 24 divisors (see below), whose sum is σ = 329397120. Its totient is φ = 131115456.

The previous prime is 212120537. The next prime is 212120563. The reversal of 212120541 is 145021212.

212120541 is a `hidden beast` number, since 2 + 1 + 2 + 120 + 541 = 666.

It is not a de Polignac number, because 212120541 - 2² = 212120537 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (212120501) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 5160 + ... + 21233.

It is an arithmetic number, because the mean of its divisors is an integer number (13724880).

Almost surely, 2^212120541 is an apocalyptic number.

It is an amenable number.

212120541 is a deficient number, since it is larger than the sum of its proper divisors (117276579).

212120541 is a wasteful number, since it uses less digits than its factorization.

212120541 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26465 (or 26462 counting only the distinct ones).

The product of its (nonzero) digits is 160, while the sum is 18.

The square root of 212120541 is about 14564.3585852587. The cubic root of 212120541 is about 596.3861859459.

Adding to 212120541 its reverse (145021212), we get a palindrome (357141753).

The spelling of 212120541 in words is "two hundred twelve million, one hundred twenty thousand, five hundred forty-one".