212040481 has 4 divisors (see below), whose sum is σ = 212075712. Its totient is φ = 212005252.

The previous prime is 212040467. The next prime is 212040497. The reversal of 212040481 is 184040212.

212040481 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 212040481 - 2⁵ = 212040449 is a prime.

It is a super-2 number, since 2×212040481² = 89922331165422722, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (212040421) 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, 6061 + ... + 21466.

It is an arithmetic number, because the mean of its divisors is an integer number (53018928).

Almost surely, 2^212040481 is an apocalyptic number.

It is an amenable number.

212040481 is a deficient number, since it is larger than the sum of its proper divisors (35231).

212040481 is an equidigital number, since it uses as much as digits as its factorization.

212040481 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 35230.

The product of its (nonzero) digits is 512, while the sum is 22.

The square root of 212040481 is about 14561.6098354543. The cubic root of 212040481 is about 596.3111457729.

Adding to 212040481 its reverse (184040212), we get a palindrome (396080693).

It can be divided in two parts, 212040 and 481, that added together give a square (212521 = 461²).

The spelling of 212040481 in words is "two hundred twelve million, forty thousand, four hundred eighty-one".