22144030402 has 8 divisors (see below), whose sum is σ = 35771126076. Its totient is φ = 10220321712.

The previous prime is 22144030399. The next prime is 22144030417. The reversal of 22144030402 is 20403044122.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 21987254961 + 156775441 = 148281^2 + 12521^2 .

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 (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 425846713 + ... + 425846764.

Almost surely, 2^22144030402 is an apocalyptic number.

22144030402 is a deficient number, since it is larger than the sum of its proper divisors (13627095674).

22144030402 is a wasteful number, since it uses less digits than its factorization.

22144030402 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 851693492.

The product of its (nonzero) digits is 1536, while the sum is 22.

Adding to 22144030402 its reverse (20403044122), we get a palindrome (42547074524).

The spelling of 22144030402 in words is "twenty-two billion, one hundred forty-four million, thirty thousand, four hundred two".