219419121 has 8 divisors (see below), whose sum is σ = 293297344. Its totient is φ = 145910160.

The previous prime is 219419117. The next prime is 219419159. The reversal of 219419121 is 121914912.

It is a happy number.

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

It is not a de Polignac number, because 219419121 - 2² = 219419117 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (219419021) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 90925 + ... + 93306.

It is an arithmetic number, because the mean of its divisors is an integer number (36662168).

Almost surely, 2^219419121 is an apocalyptic number.

It is an amenable number.

219419121 is a deficient number, since it is larger than the sum of its proper divisors (73878223).

219419121 is a wasteful number, since it uses less digits than its factorization.

219419121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 184631.

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

The square root of 219419121 is about 14812.8026045040. The cubic root of 219419121 is about 603.1492937712.

The spelling of 219419121 in words is "two hundred nineteen million, four hundred nineteen thousand, one hundred twenty-one".