2100282321825 has 72 divisors (see below), whose sum is σ = 3810227915520. Its totient is φ = 1105747718400.

The previous prime is 2100282321811. The next prime is 2100282321833. The reversal of 2100282321825 is 5281232820012.

It is not a de Polignac number, because 2100282321825 - 2¹² = 2100282317729 is a prime.

It is a super-2 number, since 2×2100282321825² (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 2100282321825.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 71 ways as a sum of consecutive naturals, for example, 124114365 + ... + 124131285.

It is an arithmetic number, because the mean of its divisors is an integer number (52919832160).

Almost surely, 2^{2100282321825} is an apocalyptic number.

2100282321825 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

2100282321825 is a deficient number, since it is larger than the sum of its proper divisors (1709945593695).

2100282321825 is a wasteful number, since it uses less digits than its factorization.

2100282321825 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23999 (or 23991 counting only the distinct ones).

The product of its (nonzero) digits is 30720, while the sum is 36.

The spelling of 2100282321825 in words is "two trillion, one hundred billion, two hundred eighty-two million, three hundred twenty-one thousand, eight hundred twenty-five".