1220450155335 has 32 divisors (see below), whose sum is σ = 2244506040000. Its totient is φ = 628461687168.

The previous prime is 1220450155289. The next prime is 1220450155339. The reversal of 1220450155335 is 5335510540221.

1220450155335 is a `hidden beast` number, since 1 + 2 + 20 + 4 + 50 + 1 + 553 + 35 = 666.

It is not a de Polignac number, because 1220450155335 - 2⁸ = 1220450155079 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 1220450155335.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1220450155339) by changing a digit.

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 31 ways as a sum of consecutive naturals, for example, 155864560 + ... + 155872389.

It is an arithmetic number, because the mean of its divisors is an integer number (70140813750).

Almost surely, 2^{1220450155335} is an apocalyptic number.

1220450155335 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

1220450155335 is a deficient number, since it is larger than the sum of its proper divisors (1024055884665).

1220450155335 is a wasteful number, since it uses less digits than its factorization.

1220450155335 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 311736992 (or 311736986 counting only the distinct ones).

The product of its (nonzero) digits is 90000, while the sum is 36.

Adding to 1220450155335 its reverse (5335510540221), we get a palindrome (6555960695556).

The spelling of 1220450155335 in words is "one trillion, two hundred twenty billion, four hundred fifty million, one hundred fifty-five thousand, three hundred thirty-five".