221054342 has 8 divisors (see below), whose sum is σ = 332331336. Its totient is φ = 110277232.

The previous prime is 221054321. The next prime is 221054359. The reversal of 221054342 is 243450122.

It is a happy number.

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

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 123863 + ... + 125634.

It is an arithmetic number, because the mean of its divisors is an integer number (41541417).

Almost surely, 2^221054342 is an apocalyptic number.

221054342 is a deficient number, since it is larger than the sum of its proper divisors (111276994).

221054342 is a wasteful number, since it uses less digits than its factorization.

221054342 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 249942.

The product of its (nonzero) digits is 1920, while the sum is 23.

The square root of 221054342 is about 14867.8963542258. The cubic root of 221054342 is about 604.6439103918.

The spelling of 221054342 in words is "two hundred twenty-one million, fifty-four thousand, three hundred forty-two".