211223240030144 has 56 divisors (see below), whose sum is σ = 421718889026880. Its totient is φ = 104965283275776.

The previous prime is 211223240030129. The next prime is 211223240030191. The reversal of 211223240030144 is 441030042322112.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 7967864 + ... + 22043895.

Almost surely, 2^{211223240030144} is an apocalyptic number.

It is an amenable number.

211223240030144 is a deficient number, since it is larger than the sum of its proper divisors (210495648996736).

211223240030144 is a wasteful number, since it uses less digits than its factorization.

211223240030144 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 30012445 (or 30012435 counting only the distinct ones).

The product of its (nonzero) digits is 9216, while the sum is 29.

Adding to 211223240030144 its reverse (441030042322112), we get a palindrome (652253282352256).

The spelling of 211223240030144 in words is "two hundred eleven trillion, two hundred twenty-three billion, two hundred forty million, thirty thousand, one hundred forty-four".