21110230362244 has 6 divisors (see below), whose sum is σ = 36942903133934. Its totient is φ = 10555115181120.

The previous prime is 21110230362227. The next prime is 21110230362281. The reversal of 21110230362244 is 44226303201112.

It can be written as a sum of positive squares in only one way, i.e., 12150313632900 + 8959916729344 = 3485730^2 + 2993312^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2638778795277 + ... + 2638778795284.

Almost surely, 2^{21110230362244} is an apocalyptic number.

It is an amenable number.

21110230362244 is a deficient number, since it is larger than the sum of its proper divisors (15832672771690).

21110230362244 is a wasteful number, since it uses less digits than its factorization.

21110230362244 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5277557590565 (or 5277557590563 counting only the distinct ones).

The product of its (nonzero) digits is 13824, while the sum is 31.

Adding to 21110230362244 its reverse (44226303201112), we get a palindrome (65336533563356).

The spelling of 21110230362244 in words is "twenty-one trillion, one hundred ten billion, two hundred thirty million, three hundred sixty-two thousand, two hundred forty-four".