2220065402 has 8 divisors (see below), whose sum is σ = 3336491412. Its totient is φ = 1107901600.

The previous prime is 2220065387. The next prime is 2220065423. The reversal of 2220065402 is 2045600222.

It can be written as a sum of positive squares in 2 ways, for example, as 1955319961 + 264745441 = 44219^2 + 16271^2 .

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

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1064249 + ... + 1066332.

Almost surely, 2^2220065402 is an apocalyptic number.

2220065402 is a deficient number, since it is larger than the sum of its proper divisors (1116426010).

2220065402 is a wasteful number, since it uses less digits than its factorization.

2220065402 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2131104.

The product of its (nonzero) digits is 1920, while the sum is 23.

The square root of 2220065402 is about 47117.5699925198. The cubic root of 2220065402 is about 1304.5335604451.

Adding to 2220065402 its reverse (2045600222), we get a palindrome (4265665624).

The spelling of 2220065402 in words is "two billion, two hundred twenty million, sixty-five thousand, four hundred two".