1066022213 has 8 divisors (see below), whose sum is σ = 1131638040. Its totient is φ = 1000729600.

The previous prime is 1066022197. The next prime is 1066022219. The reversal of 1066022213 is 3122206601.

It can be written as a sum of positive squares in 4 ways, for example, as 489205924 + 576816289 = 22118^2 + 24017^2 .

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 1066022213 - 2⁴ = 1066022197 is a prime.

It is a super-2 number, since 2×1066022213² = 2272806717218834738, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1066022219) 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, 73988 + ... + 87213.

It is an arithmetic number, because the mean of its divisors is an integer number (141454755).

Almost surely, 2^1066022213 is an apocalyptic number.

It is an amenable number.

1066022213 is a deficient number, since it is larger than the sum of its proper divisors (65615827).

1066022213 is a wasteful number, since it uses less digits than its factorization.

1066022213 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 161607.

The product of its (nonzero) digits is 864, while the sum is 23.

The square root of 1066022213 is about 32649.9956049002. The cubic root of 1066022213 is about 1021.5400971854.

Adding to 1066022213 its reverse (3122206601), we get a palindrome (4188228814).

The spelling of 1066022213 in words is "one billion, sixty-six million, twenty-two thousand, two hundred thirteen".