1101055021205 has 8 divisors (see below), whose sum is σ = 1330910303832. Its totient is φ = 874414498048.

The previous prime is 1101055021181. The next prime is 1101055021243. The reversal of 1101055021205 is 5021205501011.

It can be written as a sum of positive squares in 4 ways, for example, as 447943749796 + 653111271409 = 669286^2 + 808153^2 .

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 1101055021205 - 2¹⁴ = 1101055004821 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 803689112 + ... + 803690481.

It is an arithmetic number, because the mean of its divisors is an integer number (166363787979).

Almost surely, 2^{1101055021205} is an apocalyptic number.

It is an amenable number.

1101055021205 is a deficient number, since it is larger than the sum of its proper divisors (229855282627).

1101055021205 is a wasteful number, since it uses less digits than its factorization.

1101055021205 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1607379735.

The product of its (nonzero) digits is 500, while the sum is 23.

The spelling of 1101055021205 in words is "one trillion, one hundred one billion, fifty-five million, twenty-one thousand, two hundred five".