402144443222 has 16 divisors (see below), whose sum is σ = 619806173712. Its totient is φ = 195581191680.

The previous prime is 402144443219. The next prime is 402144443227. The reversal of 402144443222 is 222344441204.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (402144443227) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 9680723 + ... + 9722174.

It is an arithmetic number, because the mean of its divisors is an integer number (38737885857).

Almost surely, 2^402144443222 is an apocalyptic number.

402144443222 is a deficient number, since it is larger than the sum of its proper divisors (217661730490).

402144443222 is a wasteful number, since it uses less digits than its factorization.

402144443222 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19403183.

The product of its (nonzero) digits is 49152, while the sum is 32.

Adding to 402144443222 its reverse (222344441204), we get a palindrome (624488884426).

The spelling of 402144443222 in words is "four hundred two billion, one hundred forty-four million, four hundred forty-three thousand, two hundred twenty-two".