216120004019 has 2 divisors, whose sum is σ = 216120004020. Its totient is φ = 216120004018.

The previous prime is 216120003977. The next prime is 216120004027. The reversal of 216120004019 is 910400021612.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-216120004019 is a prime.

It is a super-2 number, since 2×216120004019² (a number of 23 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (216120034019) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 108060002009 + 108060002010.

It is an arithmetic number, because the mean of its divisors is an integer number (108060002010).

Almost surely, 2^216120004019 is an apocalyptic number.

216120004019 is a deficient number, since it is larger than the sum of its proper divisors (1).

216120004019 is an equidigital number, since it uses as much as digits as its factorization.

216120004019 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 864, while the sum is 26.

The spelling of 216120004019 in words is "two hundred sixteen billion, one hundred twenty million, four thousand, nineteen".