2151200021519 has 2 divisors, whose sum is σ = 2151200021520. Its totient is φ = 2151200021518.

The previous prime is 2151200021437. The next prime is 2151200021533. The reversal of 2151200021519 is 9151200021512.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 2151200021519 - 2³² = 2146905054223 is a prime.

It is a super-2 number, since 2×2151200021519² (a number of 25 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 2151200021491 and 2151200021500.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2151200026519) 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 as a sum of consecutive naturals, namely, 1075600010759 + 1075600010760.

It is an arithmetic number, because the mean of its divisors is an integer number (1075600010760).

Almost surely, 2^{2151200021519} is an apocalyptic number.

2151200021519 is a deficient number, since it is larger than the sum of its proper divisors (1).

2151200021519 is an equidigital number, since it uses as much as digits as its factorization.

2151200021519 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1800, while the sum is 29.

The spelling of 2151200021519 in words is "two trillion, one hundred fifty-one billion, two hundred million, twenty-one thousand, five hundred nineteen".