1103011100221 has 4 divisors (see below), whose sum is σ = 1104495638112. Its totient is φ = 1101526562332.

The previous prime is 1103011100209. The next prime is 1103011100231. The reversal of 1103011100221 is 1220011103011.

It is a happy number.

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 1103011100221 - 2¹⁵ = 1103011067453 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1103011100231) 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, 742267831 + ... + 742269316.

It is an arithmetic number, because the mean of its divisors is an integer number (276123909528).

Almost surely, 2^{1103011100221} is an apocalyptic number.

It is an amenable number.

1103011100221 is a deficient number, since it is larger than the sum of its proper divisors (1484537891).

1103011100221 is an equidigital number, since it uses as much as digits as its factorization.

1103011100221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1484537890.

The product of its (nonzero) digits is 12, while the sum is 13.

Adding to 1103011100221 its reverse (1220011103011), we get a palindrome (2323022203232).

The spelling of 1103011100221 in words is "one trillion, one hundred three billion, eleven million, one hundred thousand, two hundred twenty-one".