2112021184837 has 2 divisors, whose sum is σ = 2112021184838. Its totient is φ = 2112021184836.

The previous prime is 2112021184831. The next prime is 2112021184853. The reversal of 2112021184837 is 7384811202112.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1858965906721 + 253055278116 = 1363439^2 + 503046^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2112021184837 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 2112021184837.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2112021184831) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1056010592418 + 1056010592419.

It is an arithmetic number, because the mean of its divisors is an integer number (1056010592419).

Almost surely, 2^{2112021184837} is an apocalyptic number.

It is an amenable number.

2112021184837 is a deficient number, since it is larger than the sum of its proper divisors (1).

2112021184837 is an equidigital number, since it uses as much as digits as its factorization.

2112021184837 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 43008, while the sum is 40.

Adding to 2112021184837 its reverse (7384811202112), we get a palindrome (9496832386949).

The spelling of 2112021184837 in words is "two trillion, one hundred twelve billion, twenty-one million, one hundred eighty-four thousand, eight hundred thirty-seven".