1220002140455 has 8 divisors (see below), whose sum is σ = 1673145792672. Its totient is φ = 836572896288.

The previous prime is 1220002140437. The next prime is 1220002140463. The reversal of 1220002140455 is 5540412000221.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 1220002140455 - 2⁶ = 1220002140391 is a prime.

It is a Duffinian number.

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 7 ways as a sum of consecutive naturals, for example, 17428601972 + ... + 17428602041.

It is an arithmetic number, because the mean of its divisors is an integer number (209143224084).

Almost surely, 2^{1220002140455} is an apocalyptic number.

1220002140455 is a deficient number, since it is larger than the sum of its proper divisors (453143652217).

1220002140455 is an equidigital number, since it uses as much as digits as its factorization.

1220002140455 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 34857204025.

The product of its (nonzero) digits is 3200, while the sum is 26.

Adding to 1220002140455 its reverse (5540412000221), we get a palindrome (6760414140676).

The spelling of 1220002140455 in words is "one trillion, two hundred twenty billion, two million, one hundred forty thousand, four hundred fifty-five".