1066220221162 has 8 divisors (see below), whose sum is σ = 1599334726500. Its totient is φ = 533108645664.

The previous prime is 1066220221141. The next prime is 1066220221219. The reversal of 1066220221162 is 2611220226601.

It can be written as a sum of positive squares in 2 ways, for example, as 1066219391241 + 829921 = 1032579^2 + 911^2 .

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

It is a super-2 number, since 2×1066220221162² (a number of 25 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 953214 + ... + 1743862.

Almost surely, 2^{1066220221162} is an apocalyptic number.

1066220221162 is a deficient number, since it is larger than the sum of its proper divisors (533114505338).

1066220221162 is an equidigital number, since it uses as much as digits as its factorization.

1066220221162 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1464920.

The product of its (nonzero) digits is 6912, while the sum is 31.

Adding to 1066220221162 its reverse (2611220226601), we get a palindrome (3677440447763).

The spelling of 1066220221162 in words is "one trillion, sixty-six billion, two hundred twenty million, two hundred twenty-one thousand, one hundred sixty-two".