2181241034046 has 24 divisors (see below), whose sum is σ = 4726898776080. Its totient is φ = 726945493056.

The previous prime is 2181241034009. The next prime is 2181241034047. The reversal of 2181241034046 is 6404301421812.

2181241034046 is a `hidden beast` number, since 2 + 1 + 8 + 1 + 241 + 0 + 3 + 404 + 6 = 666.

It is a super-2 number, since 2×2181241034046² (a number of 25 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 2181241034046.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2181241034047) 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, 11137866 + ... + 11332013.

It is an arithmetic number, because the mean of its divisors is an integer number (196954115670).

Almost surely, 2^{2181241034046} is an apocalyptic number.

2181241034046 is an abundant number, since it is smaller than the sum of its proper divisors (2545657742034).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

2181241034046 is a wasteful number, since it uses less digits than its factorization.

2181241034046 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22475280 (or 22475277 counting only the distinct ones).

The product of its (nonzero) digits is 36864, while the sum is 36.

Adding to 2181241034046 its reverse (6404301421812), we get a palindrome (8585542455858).

The spelling of 2181241034046 in words is "two trillion, one hundred eighty-one billion, two hundred forty-one million, thirty-four thousand, forty-six".