1220433254144 has 36 divisors (see below), whose sum is σ = 2623491443496. Its totient is φ = 563276884992.

The previous prime is 1220433254137. The next prime is 1220433254167. The reversal of 1220433254144 is 4414523340221.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 183355034 + ... + 183361689.

Almost surely, 2^{1220433254144} is an apocalyptic number.

It is an amenable number.

1220433254144 is an abundant number, since it is smaller than the sum of its proper divisors (1403058189352).

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

1220433254144 is an equidigital number, since it uses as much as digits as its factorization.

1220433254144 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 366716752 (or 366716738 counting only the distinct ones).

The product of its (nonzero) digits is 92160, while the sum is 35.

Adding to 1220433254144 its reverse (4414523340221), we get a palindrome (5634956594365).

The spelling of 1220433254144 in words is "one trillion, two hundred twenty billion, four hundred thirty-three million, two hundred fifty-four thousand, one hundred forty-four".