1466230221 has 32 divisors (see below), whose sum is σ = 2219500800. Its totient is φ = 956370240.

The previous prime is 1466230217. The next prime is 1466230223. The reversal of 1466230221 is 1220326641.

1466230221 is a `hidden beast` number, since 14 + 6 + 623 + 0 + 2 + 21 = 666.

It is not a de Polignac number, because 1466230221 - 2² = 1466230217 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1466230223) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 322200 + ... + 326718.

It is an arithmetic number, because the mean of its divisors is an integer number (69359400).

Almost surely, 2^1466230221 is an apocalyptic number.

It is an amenable number.

1466230221 is a deficient number, since it is larger than the sum of its proper divisors (753270579).

1466230221 is a wasteful number, since it uses less digits than its factorization.

1466230221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4786 (or 4780 counting only the distinct ones).

The product of its (nonzero) digits is 3456, while the sum is 27.

The square root of 1466230221 is about 38291.3857283854. The cubic root of 1466230221 is about 1136.0585700663.

Adding to 1466230221 its reverse (1220326641), we get a palindrome (2686556862).

The spelling of 1466230221 in words is "one billion, four hundred sixty-six million, two hundred thirty thousand, two hundred twenty-one".