1002223155155 has 4 divisors (see below), whose sum is σ = 1202667786192. Its totient is φ = 801778524120.

The previous prime is 1002223155151. The next prime is 1002223155163. The reversal of 1002223155155 is 5515513222001.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 1002223155155 - 2² = 1002223155151 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1002223155151) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 100222315511 + ... + 100222315520.

It is an arithmetic number, because the mean of its divisors is an integer number (300666946548).

Almost surely, 2^{1002223155155} is an apocalyptic number.

1002223155155 is a deficient number, since it is larger than the sum of its proper divisors (200444631037).

1002223155155 is an equidigital number, since it uses as much as digits as its factorization.

1002223155155 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 200444631036.

The product of its (nonzero) digits is 15000, while the sum is 32.

Adding to 1002223155155 its reverse (5515513222001), we get a palindrome (6517736377156).

The spelling of 1002223155155 in words is "one trillion, two billion, two hundred twenty-three million, one hundred fifty-five thousand, one hundred fifty-five".