2220144243444 has 48 divisors (see below), whose sum is σ = 5756052872640. Its totient is φ = 740032221600.

The previous prime is 2220144243419. The next prime is 2220144243523. The reversal of 2220144243444 is 4443424410222.

2220144243444 is a `hidden beast` number, since 2 + 2 + 201 + 4 + 4 + 2 + 4 + 3 + 444 = 666.

It is a super-2 number, since 2×2220144243444² (a number of 25 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a junction number, because it is equal to n+sod(n) for n = 2220144243399 and 2220144243408.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 5535762 + ... + 5923254.

It is an arithmetic number, because the mean of its divisors is an integer number (119917768180).

Almost surely, 2^{2220144243444} is an apocalyptic number.

It is an amenable number.

2220144243444 is an abundant number, since it is smaller than the sum of its proper divisors (3535908629196).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

2220144243444 is a wasteful number, since it uses less digits than its factorization.

2220144243444 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 440557 (or 440549 counting only the distinct ones).

The product of its (nonzero) digits is 196608, while the sum is 36.

Adding to 2220144243444 its reverse (4443424410222), we get a palindrome (6663568653666).

The spelling of 2220144243444 in words is "two trillion, two hundred twenty billion, one hundred forty-four million, two hundred forty-three thousand, four hundred forty-four".