1066021201 has 16 divisors (see below), whose sum is σ = 1284121600. Its totient is φ = 864500688.

The previous prime is 1066021189. The next prime is 1066021217. The reversal of 1066021201 is 1021206601.

1066021201 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a cyclic number.

It is not a de Polignac number, because 1066021201 - 2²⁵ = 1032466769 is a prime.

It is a super-2 number, since 2×1066021201² = 2272802401962964802, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (19).

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1066021301) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 104590 + ... + 114328.

It is an arithmetic number, because the mean of its divisors is an integer number (80257600).

Almost surely, 2^1066021201 is an apocalyptic number.

It is an amenable number.

1066021201 is a deficient number, since it is larger than the sum of its proper divisors (218100399).

1066021201 is an equidigital number, since it uses as much as digits as its factorization.

1066021201 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10588.

The product of its (nonzero) digits is 144, while the sum is 19.

The square root of 1066021201 is about 32649.9801071915. The cubic root of 1066021201 is about 1021.5397739279.

Adding to 1066021201 its reverse (1021206601), we get a palindrome (2087227802).

The spelling of 1066021201 in words is "one billion, sixty-six million, twenty-one thousand, two hundred one".