221341042 has 32 divisors (see below), whose sum is σ = 370545840. Its totient is φ = 98503680.

The previous prime is 221341039. The next prime is 221341069. The reversal of 221341042 is 240143122.

221341042 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 8 ways, for example, as 848241 + 220492801 = 921^2 + 14849^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 93708 + ... + 96040.

Almost surely, 2^221341042 is an apocalyptic number.

221341042 is a deficient number, since it is larger than the sum of its proper divisors (149204798).

221341042 is a wasteful number, since it uses less digits than its factorization.

221341042 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2478.

The product of its (nonzero) digits is 384, while the sum is 19.

The square root of 221341042 is about 14877.5348092350. The cubic root of 221341042 is about 604.9051983597.

Adding to 221341042 its reverse (240143122), we get a palindrome (461484164).

The spelling of 221341042 in words is "two hundred twenty-one million, three hundred forty-one thousand, forty-two".