2181214583975 has 12 divisors (see below), whose sum is σ = 3091092667824. Its totient is φ = 1495690000320.

The previous prime is 2181214583921. The next prime is 2181214584007. The reversal of 2181214583975 is 5793854121812.

It is not a de Polignac number, because 2181214583975 - 2⁸ = 2181214583719 is a prime.

It is a super-2 number, since 2×2181214583975² (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 2181214583975.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 6232041494 + ... + 6232041843.

It is an arithmetic number, because the mean of its divisors is an integer number (257591055652).

Almost surely, 2^{2181214583975} is an apocalyptic number.

2181214583975 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

2181214583975 is a deficient number, since it is larger than the sum of its proper divisors (909878083849).

2181214583975 is a wasteful number, since it uses less digits than its factorization.

2181214583975 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12464083354 (or 12464083349 counting only the distinct ones).

The product of its digits is 4838400, while the sum is 56.

The spelling of 2181214583975 in words is "two trillion, one hundred eighty-one billion, two hundred fourteen million, five hundred eighty-three thousand, nine hundred seventy-five".