2125214021617 has 8 divisors (see below), whose sum is σ = 2126834524800. Its totient is φ = 2123593680384.

The previous prime is 2125214021599. The next prime is 2125214021629. The reversal of 2125214021617 is 7161204125212.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2125214021617 is a prime.

It is a super-3 number, since 3×2125214021617³ (a number of 38 digits) contains 333 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2125214025617) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 43878828 + ... + 43927234.

It is an arithmetic number, because the mean of its divisors is an integer number (265854315600).

Almost surely, 2^{2125214021617} is an apocalyptic number.

It is an amenable number.

2125214021617 is a deficient number, since it is larger than the sum of its proper divisors (1620503183).

2125214021617 is a wasteful number, since it uses less digits than its factorization.

2125214021617 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 80975.

The product of its (nonzero) digits is 13440, while the sum is 34.

Adding to 2125214021617 its reverse (7161204125212), we get a palindrome (9286418146829).

The spelling of 2125214021617 in words is "two trillion, one hundred twenty-five billion, two hundred fourteen million, twenty-one thousand, six hundred seventeen".