221052354 has 8 divisors (see below), whose sum is σ = 442104720. Its totient is φ = 73684116.

The previous prime is 221052341. The next prime is 221052397. The reversal of 221052354 is 453250122.

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

221052354 is an admirable number.

It is a Curzon 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, 18421024 + ... + 18421035.

It is an arithmetic number, because the mean of its divisors is an integer number (55263090).

Almost surely, 2^221052354 is an apocalyptic number.

221052354 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

221052354 is a wasteful number, since it uses less digits than its factorization.

221052354 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 36842064.

The product of its (nonzero) digits is 2400, while the sum is 24.

The square root of 221052354 is about 14867.8294986188. The cubic root of 221052354 is about 604.6420978123.

The spelling of 221052354 in words is "two hundred twenty-one million, fifty-two thousand, three hundred fifty-four".