1103223311221 has 4 divisors (see below), whose sum is σ = 1103283657792. Its totient is φ = 1103162964652.

The previous prime is 1103223311119. The next prime is 1103223311251. The reversal of 1103223311221 is 1221133223011.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 1103223311221 - 2¹³ = 1103223303029 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1103223311192 and 1103223311201.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1103223311251) 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, 30145855 + ... + 30182428.

It is an arithmetic number, because the mean of its divisors is an integer number (275820914448).

Almost surely, 2^{1103223311221} is an apocalyptic number.

It is an amenable number.

1103223311221 is a deficient number, since it is larger than the sum of its proper divisors (60346571).

1103223311221 is an equidigital number, since it uses as much as digits as its factorization.

1103223311221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 60346570.

The product of its (nonzero) digits is 432, while the sum is 22.

Adding to 1103223311221 its reverse (1221133223011), we get a palindrome (2324356534232).

The spelling of 1103223311221 in words is "one trillion, one hundred three billion, two hundred twenty-three million, three hundred eleven thousand, two hundred twenty-one".