221102303122033 has 4 divisors (see below), whose sum is σ = 223586598662820. Its totient is φ = 218618007581248.

The previous prime is 221102303121961. The next prime is 221102303122039. The reversal of 221102303122033 is 330221303201122.

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

It can be written as a sum of positive squares in 2 ways, for example, as 16535991203809 + 204566311918224 = 4066447^2 + 14302668^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-221102303122033 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 221102303121989 and 221102303122007.

It is not an unprimeable number, because it can be changed into a prime (221102303122039) 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, 1242147770260 + ... + 1242147770437.

It is an arithmetic number, because the mean of its divisors is an integer number (55896649665705).

Almost surely, 2^{221102303122033} is an apocalyptic number.

It is an amenable number.

221102303122033 is a deficient number, since it is larger than the sum of its proper divisors (2484295540787).

221102303122033 is an equidigital number, since it uses as much as digits as its factorization.

221102303122033 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2484295540786.

The product of its (nonzero) digits is 2592, while the sum is 25.

Adding to 221102303122033 its reverse (330221303201122), we get a palindrome (551323606323155).

The spelling of 221102303122033 in words is "two hundred twenty-one trillion, one hundred two billion, three hundred three million, one hundred twenty-two thousand, thirty-three".