2120138219 has 2 divisors, whose sum is σ = 2120138220. Its totient is φ = 2120138218.

The previous prime is 2120138213. The next prime is 2120138233. The reversal of 2120138219 is 9128310212.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 2120138219 - 2⁴ = 2120138203 is a prime.

It is a super-2 number, since 2×2120138219² = 8989972135328983922, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 2120138191 and 2120138200.

It is not a weakly prime, because it can be changed into another prime (2120138213) 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, 1060069109 + 1060069110.

It is an arithmetic number, because the mean of its divisors is an integer number (1060069110).

Almost surely, 2^2120138219 is an apocalyptic number.

2120138219 is a deficient number, since it is larger than the sum of its proper divisors (1).

2120138219 is an equidigital number, since it uses as much as digits as its factorization.

2120138219 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1728, while the sum is 29.

The square root of 2120138219 is about 46044.9586708469. The cubic root of 2120138219 is about 1284.6595754239.

The spelling of 2120138219 in words is "two billion, one hundred twenty million, one hundred thirty-eight thousand, two hundred nineteen".