1100225221555 has 16 divisors (see below), whose sum is σ = 1328559644160. Its totient is φ = 874655467488.

The previous prime is 1100225221553. The next prime is 1100225221561. The reversal of 1100225221555 is 5551225220011.

It is a cyclic number.

It is not a de Polignac number, because 1100225221555 - 2¹ = 1100225221553 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1100225221553) 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, 5842966 + ... + 6028324.

It is an arithmetic number, because the mean of its divisors is an integer number (83034977760).

Almost surely, 2^{1100225221555} is an apocalyptic number.

1100225221555 is a deficient number, since it is larger than the sum of its proper divisors (228334422605).

1100225221555 is a wasteful number, since it uses less digits than its factorization.

1100225221555 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 192810.

The product of its (nonzero) digits is 10000, while the sum is 31.

The spelling of 1100225221555 in words is "one trillion, one hundred billion, two hundred twenty-five million, two hundred twenty-one thousand, five hundred fifty-five".