221219342 has 8 divisors (see below), whose sum is σ = 331892616. Its totient is φ = 110588472.

The previous prime is 221219333. The next prime is 221219347. The reversal of 221219342 is 243912122.

221219342 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 congruent number.

It is not an unprimeable number, because it can be changed into a prime (221219347) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 12593 + ... + 24515.

It is an arithmetic number, because the mean of its divisors is an integer number (41486577).

Almost surely, 2^221219342 is an apocalyptic number.

221219342 is a deficient number, since it is larger than the sum of its proper divisors (110673274).

221219342 is a wasteful number, since it uses less digits than its factorization.

221219342 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21202.

The product of its digits is 1728, while the sum is 26.

The square root of 221219342 is about 14873.4441875445. Note that the first 3 decimals coincide. The cubic root of 221219342 is about 604.7943129761.

The spelling of 221219342 in words is "two hundred twenty-one million, two hundred nineteen thousand, three hundred forty-two".