21144223110034 has 64 divisors (see below), whose sum is σ = 34441526553984. Its totient is φ = 9696627956736.

The previous prime is 21144223110011. The next prime is 21144223110047. The reversal of 21144223110034 is 43001132244112.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 21144223109984 and 21144223110011.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1544156092 + ... + 1544169784.

It is an arithmetic number, because the mean of its divisors is an integer number (538148852406).

Almost surely, 2^{21144223110034} is an apocalyptic number.

21144223110034 is a deficient number, since it is larger than the sum of its proper divisors (13297303443950).

21144223110034 is a wasteful number, since it uses less digits than its factorization.

21144223110034 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16091.

The product of its (nonzero) digits is 4608, while the sum is 28.

Adding to 21144223110034 its reverse (43001132244112), we get a palindrome (64145355354146).

The spelling of 21144223110034 in words is "twenty-one trillion, one hundred forty-four billion, two hundred twenty-three million, one hundred ten thousand, thirty-four".