221046001 has 8 divisors (see below), whose sum is σ = 242877600. Its totient is φ = 199503840.

The previous prime is 221045963. The next prime is 221046011. The reversal of 221046001 is 100640122.

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

It is a cyclic number.

It is not a de Polignac number, because 221046001 - 2¹³ = 221037809 is a prime.

It is a super-2 number, since 2×221046001² = 97722669116184002, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (221046011) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 70756 + ... + 73813.

It is an arithmetic number, because the mean of its divisors is an integer number (30359700).

Almost surely, 2^221046001 is an apocalyptic number.

It is an amenable number.

221046001 is a deficient number, since it is larger than the sum of its proper divisors (21831599).

221046001 is a wasteful number, since it uses less digits than its factorization.

221046001 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 144719.

The product of its (nonzero) digits is 96, while the sum is 16.

The square root of 221046001 is about 14867.6158478755. The cubic root of 221046001 is about 604.6363053263.

Adding to 221046001 its reverse (100640122), we get a palindrome (321686123).

The spelling of 221046001 in words is "two hundred twenty-one million, forty-six thousand, one".