1220441221454 has 16 divisors (see below), whose sum is σ = 2253122255328. Its totient is φ = 482811911712.

The previous prime is 1220441221451. The next prime is 1220441221463. The reversal of 1220441221454 is 4541221440221.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 1220441221454.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1220441221451) 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, 3352860317 + ... + 3352860680.

It is an arithmetic number, because the mean of its divisors is an integer number (140820140958).

Almost surely, 2^{1220441221454} is an apocalyptic number.

1220441221454 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

1220441221454 is a deficient number, since it is larger than the sum of its proper divisors (1032681033874).

1220441221454 is a wasteful number, since it uses less digits than its factorization.

1220441221454 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6705721019.

The product of its (nonzero) digits is 20480, while the sum is 32.

Adding to 1220441221454 its reverse (4541221440221), we get a palindrome (5761662661675).

The spelling of 1220441221454 in words is "one trillion, two hundred twenty billion, four hundred forty-one million, two hundred twenty-one thousand, four hundred fifty-four".