146645223222 has 16 divisors (see below), whose sum is σ = 298261471680. Its totient is φ = 48053236872.

The previous prime is 146645223181. The next prime is 146645223287. The reversal of 146645223222 is 222322546641.

It is a super-2 number, since 2×146645223222² (a number of 23 digits) contains 22 as substring.

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 7 ways as a sum of consecutive naturals, for example, 207125668 + ... + 207126375.

It is an arithmetic number, because the mean of its divisors is an integer number (18641341980).

Almost surely, 2^146645223222 is an apocalyptic number.

146645223222 is an abundant number, since it is smaller than the sum of its proper divisors (151616248458).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

146645223222 is a wasteful number, since it uses less digits than its factorization.

146645223222 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 414252107.

The product of its digits is 276480, while the sum is 39.

Adding to 146645223222 its reverse (222322546641), we get a palindrome (368967769863).

The spelling of 146645223222 in words is "one hundred forty-six billion, six hundred forty-five million, two hundred twenty-three thousand, two hundred twenty-two".