221203401124144 has 40 divisors (see below), whose sum is σ = 428719646467728. Its totient is φ = 110566077573120.

The previous prime is 221203401124133. The next prime is 221203401124201. The reversal of 221203401124144 is 441421104302122.

It is a super-3 number, since 3×221203401124144³ (a number of 44 digits) contains 333 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 821397964 + ... + 821667220.

Almost surely, 2^{221203401124144} is an apocalyptic number.

It is an amenable number.

221203401124144 is a deficient number, since it is larger than the sum of its proper divisors (207516245343584).

221203401124144 is a wasteful number, since it uses less digits than its factorization.

221203401124144 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 285613 (or 285607 counting only the distinct ones).

The product of its (nonzero) digits is 12288, while the sum is 31.

Adding to 221203401124144 its reverse (441421104302122), we get a palindrome (662624505426266).

The spelling of 221203401124144 in words is "two hundred twenty-one trillion, two hundred three billion, four hundred one million, one hundred twenty-four thousand, one hundred forty-four".