219491120001 has 8 divisors (see below), whose sum is σ = 309869816544. Its totient is φ = 137719918400.

The previous prime is 219491119997. The next prime is 219491120003. The reversal of 219491120001 is 100021194912.

It is a happy number.

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 219491120001 - 2² = 219491119997 is a prime.

It is not an unprimeable number, because it can be changed into a prime (219491120003) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2151873675 + ... + 2151873776.

It is an arithmetic number, because the mean of its divisors is an integer number (38733727068).

Almost surely, 2^219491120001 is an apocalyptic number.

It is an amenable number.

219491120001 is a deficient number, since it is larger than the sum of its proper divisors (90378696543).

219491120001 is a wasteful number, since it uses less digits than its factorization.

219491120001 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4303747471.

The product of its (nonzero) digits is 1296, while the sum is 30.

The spelling of 219491120001 in words is "two hundred nineteen billion, four hundred ninety-one million, one hundred twenty thousand, one".