2288021066 has 4 divisors (see below), whose sum is σ = 3432031602. Its totient is φ = 1144010532.

The previous prime is 2288021063. The next prime is 2288021069. The reversal of 2288021066 is 6601208822.

It is a semiprime because it is the product of two primes.

It is an interprime number because it is at equal distance from previous prime (2288021063) and next prime (2288021069).

It can be written as a sum of positive squares in only one way, i.e., 2141005441 + 147015625 = 46271^2 + 12125^2 .

It is not an unprimeable number, because it can be changed into a prime (2288021063) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 572005265 + ... + 572005268.

Almost surely, 2^2288021066 is an apocalyptic number.

2288021066 is a deficient number, since it is larger than the sum of its proper divisors (1144010536).

2288021066 is a wasteful number, since it uses less digits than its factorization.

2288021066 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1144010535.

The product of its (nonzero) digits is 18432, while the sum is 35.

The square root of 2288021066 is about 47833.2631753260. The cubic root of 2288021066 is about 1317.7104990080.

Adding to 2288021066 its reverse (6601208822), we get a palindrome (8889229888).

The spelling of 2288021066 in words is "two billion, two hundred eighty-eight million, twenty-one thousand, sixty-six".