219219901243 has 8 divisors (see below), whose sum is σ = 250540777440. Its totient is φ = 187899961920.

The previous prime is 219219901213. The next prime is 219219901249. The reversal of 219219901243 is 342109912912.

219219901243 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is a cyclic number.

It is not a de Polignac number, because 219219901243 - 2²⁵ = 219186346811 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 219219901243.

It is not an unprimeable number, because it can be changed into a prime (219219901249) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 371703 + ... + 759343.

It is an arithmetic number, because the mean of its divisors is an integer number (31317597180).

Almost surely, 2^219219901243 is an apocalyptic number.

219219901243 is a deficient number, since it is larger than the sum of its proper divisors (31320876197).

219219901243 is an equidigital number, since it uses as much as digits as its factorization.

219219901243 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 468437.

The product of its (nonzero) digits is 69984, while the sum is 43.

The spelling of 219219901243 in words is "two hundred nineteen billion, two hundred nineteen million, nine hundred one thousand, two hundred forty-three".