1224221204444 has 24 divisors (see below), whose sum is σ = 2451702693888. Its totient is φ = 523967598000.

The previous prime is 1224221204441. The next prime is 1224221204483. The reversal of 1224221204444 is 4444021224221.

It is a self number, because there is not a number n which added to its sum of digits gives 1224221204444.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1224221204441) 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, 29088284 + ... + 29130339.

It is an arithmetic number, because the mean of its divisors is an integer number (102154278912).

Almost surely, 2^{1224221204444} is an apocalyptic number.

1224221204444 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

It is an amenable number.

1224221204444 is an abundant number, since it is smaller than the sum of its proper divisors (1227481489444).

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

1224221204444 is a wasteful number, since it uses less digits than its factorization.

1224221204444 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 58219385 (or 58219383 counting only the distinct ones).

The product of its (nonzero) digits is 32768, while the sum is 32.

Adding to 1224221204444 its reverse (4444021224221), we get a palindrome (5668242428665).

The spelling of 1224221204444 in words is "one trillion, two hundred twenty-four billion, two hundred twenty-one million, two hundred four thousand, four hundred forty-four".