221244014243144 has 32 divisors (see below), whose sum is σ = 421361495519040. Its totient is φ = 108886032158400.

The previous prime is 221244014243143. The next prime is 221244014243173. The reversal of 221244014243144 is 441342410442122.

It is a junction number, because it is equal to n+sod(n) for n = 221244014243098 and 221244014243107.

It is not an unprimeable number, because it can be changed into a prime (221244014243143) 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, 317363162 + ... + 318059529.

It is an arithmetic number, because the mean of its divisors is an integer number (13167546734970).

Almost surely, 2^{221244014243144} is an apocalyptic number.

It is an amenable number.

221244014243144 is a deficient number, since it is larger than the sum of its proper divisors (200117481275896).

221244014243144 is a wasteful number, since it uses less digits than its factorization.

221244014243144 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 635423381 (or 635423377 counting only the distinct ones).

The product of its (nonzero) digits is 196608, while the sum is 38.

Adding to 221244014243144 its reverse (441342410442122), we get a palindrome (662586424685266).

The spelling of 221244014243144 in words is "two hundred twenty-one trillion, two hundred forty-four billion, fourteen million, two hundred forty-three thousand, one hundred forty-four".