221367045 has 8 divisors (see below), whose sum is σ = 354187296. Its totient is φ = 118062416.

The previous prime is 221367031. The next prime is 221367049. The reversal of 221367045 is 540763122.

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 221367045 - 2¹² = 221362949 is a prime.

It is a super-2 number, since 2×221367045² = 98006737224064050, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (221367049) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 7378887 + ... + 7378916.

It is an arithmetic number, because the mean of its divisors is an integer number (44273412).

Almost surely, 2^221367045 is an apocalyptic number.

It is an amenable number.

221367045 is a deficient number, since it is larger than the sum of its proper divisors (132820251).

221367045 is a wasteful number, since it uses less digits than its factorization.

221367045 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14757811.

The product of its (nonzero) digits is 10080, while the sum is 30.

The square root of 221367045 is about 14878.4086850711. The cubic root of 221367045 is about 604.9288853870.

The spelling of 221367045 in words is "two hundred twenty-one million, three hundred sixty-seven thousand, forty-five".