1011103030221 has 16 divisors (see below), whose sum is σ = 1427589542400. Its totient is φ = 634767481008.

The previous prime is 1011103030219. The next prime is 1011103030243. The reversal of 1011103030221 is 1220303011101.

It is a happy number.

It is not a de Polignac number, because 1011103030221 - 2¹ = 1011103030219 is a prime.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 1011103030221.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1011103030621) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 53100211 + ... + 53119248.

It is an arithmetic number, because the mean of its divisors is an integer number (89224346400).

Almost surely, 2^{1011103030221} is an apocalyptic number.

It is an amenable number.

1011103030221 is a deficient number, since it is larger than the sum of its proper divisors (416486512179).

1011103030221 is a wasteful number, since it uses less digits than its factorization.

1011103030221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 106219648.

The product of its (nonzero) digits is 36, while the sum is 15.

Adding to 1011103030221 its reverse (1220303011101), we get a palindrome (2231406041322).

The spelling of 1011103030221 in words is "one trillion, eleven billion, one hundred three million, thirty thousand, two hundred twenty-one".