1011011303221 has 8 divisors (see below), whose sum is σ = 1018995261440. Its totient is φ = 1003027708368.

The previous prime is 1011011303173. The next prime is 1011011303233. The reversal of 1011011303221 is 1223031101101.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 1011011303221 - 2¹⁵ = 1011011270453 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1011011303195 and 1011011303204.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1011011303021) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 9350215 + ... + 9457723.

It is an arithmetic number, because the mean of its divisors is an integer number (127374407680).

Almost surely, 2^{1011011303221} is an apocalyptic number.

It is an amenable number.

1011011303221 is a deficient number, since it is larger than the sum of its proper divisors (7983958219).

1011011303221 is a wasteful number, since it uses less digits than its factorization.

1011011303221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 181683.

The product of its (nonzero) digits is 36, while the sum is 16.

Adding to 1011011303221 its reverse (1223031101101), we get a palindrome (2234042404322).

The spelling of 1011011303221 in words is "one trillion, eleven billion, eleven million, three hundred three thousand, two hundred twenty-one".