1103101221020 has 12 divisors (see below), whose sum is σ = 2316512564184. Its totient is φ = 441240488400.

The previous prime is 1103101221017. The next prime is 1103101221029. The reversal of 1103101221020 is 201221013011.

It is a junction number, because it is equal to n+sod(n) for n = 1103101220986 and 1103101221004.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1103101221029) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 27577530506 + ... + 27577530545.

It is an arithmetic number, because the mean of its divisors is an integer number (193042713682).

Almost surely, 2^{1103101221020} is an apocalyptic number.

1103101221020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1103101221020 is an abundant number, since it is smaller than the sum of its proper divisors (1213411343164).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1103101221020 is a wasteful number, since it uses less digits than its factorization.

1103101221020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 55155061060 (or 55155061058 counting only the distinct ones).

The product of its (nonzero) digits is 24, while the sum is 14.

Adding to 1103101221020 its reverse (201221013011), we get a palindrome (1304322234031).

The spelling of 1103101221020 in words is "one trillion, one hundred three billion, one hundred one million, two hundred twenty-one thousand, twenty".