221442243034 has 8 divisors (see below), whose sum is σ = 335587729428. Its totient is φ = 109579666560.

The previous prime is 221442243023. The next prime is 221442243091. The reversal of 221442243034 is 430342244122.

It can be written as a sum of positive squares in 2 ways, for example, as 207431969809 + 14010273225 = 455447^2 + 118365^2 .

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

It is a junction number, because it is equal to n+sod(n) for n = 221442242987 and 221442243005.

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, 570727237 + ... + 570727624.

Almost surely, 2^221442243034 is an apocalyptic number.

221442243034 is a deficient number, since it is larger than the sum of its proper divisors (114145486394).

221442243034 is a wasteful number, since it uses less digits than its factorization.

221442243034 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1141454960.

The product of its (nonzero) digits is 36864, while the sum is 31.

Adding to 221442243034 its reverse (430342244122), we get a palindrome (651784487156).

The spelling of 221442243034 in words is "two hundred twenty-one billion, four hundred forty-two million, two hundred forty-three thousand, thirty-four".