1022212165 has 16 divisors (see below), whose sum is σ = 1349123328. Its totient is φ = 738801216.

The previous prime is 1022212157. The next prime is 1022212171. The reversal of 1022212165 is 5612122201.

It is a cyclic number.

It is not a de Polignac number, because 1022212165 - 2³ = 1022212157 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 164247 + ... + 170356.

It is an arithmetic number, because the mean of its divisors is an integer number (84320208).

Almost surely, 2^1022212165 is an apocalyptic number.

It is an amenable number.

1022212165 is a deficient number, since it is larger than the sum of its proper divisors (326911163).

1022212165 is a wasteful number, since it uses less digits than its factorization.

1022212165 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 334668.

The product of its (nonzero) digits is 480, while the sum is 22.

The square root of 1022212165 is about 31972.0528743464. The cubic root of 1022212165 is about 1007.3499015967.

Adding to 1022212165 its reverse (5612122201), we get a palindrome (6634334366).

The spelling of 1022212165 in words is "one billion, twenty-two million, two hundred twelve thousand, one hundred sixty-five".