422210145 has 32 divisors (see below), whose sum is σ = 792914688. Its totient is φ = 187792128.

The previous prime is 422210119. The next prime is 422210167. The reversal of 422210145 is 541012224.

It is not a de Polignac number, because 422210145 - 2⁷ = 422210017 is a prime.

It is a super-2 number, since 2×422210145² = 356522813081842050, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (21).

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 31 ways as a sum of consecutive naturals, for example, 50454 + ... + 58223.

It is an arithmetic number, because the mean of its divisors is an integer number (24778584).

Almost surely, 2^422210145 is an apocalyptic number.

It is an amenable number.

422210145 is a deficient number, since it is larger than the sum of its proper divisors (370704543).

422210145 is a wasteful number, since it uses less digits than its factorization.

422210145 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 108729.

The product of its (nonzero) digits is 640, while the sum is 21.

The square root of 422210145 is about 20547.7527968389. The cubic root of 422210145 is about 750.1985518760.

Adding to 422210145 its reverse (541012224), we get a palindrome (963222369).

The spelling of 422210145 in words is "four hundred twenty-two million, two hundred ten thousand, one hundred forty-five".