1100221221010 has 16 divisors (see below), whose sum is σ = 1980411667416. Its totient is φ = 440085495168.

The previous prime is 1100221220993. The next prime is 1100221221017. The reversal of 1100221221010 is 101221220011.

It can be written as a sum of positive squares in 4 ways, for example, as 901259726409 + 198961494601 = 949347^2 + 446051^2 .

It is not an unprimeable number, because it can be changed into a prime (1100221221017) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1736734 + ... + 2284006.

Almost surely, 2^{1100221221010} is an apocalyptic number.

1100221221010 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1100221221010 is a deficient number, since it is larger than the sum of its proper divisors (880190446406).

1100221221010 is a wasteful number, since it uses less digits than its factorization.

1100221221010 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 748317.

The product of its (nonzero) digits is 16, while the sum is 13.

Adding to 1100221221010 its reverse (101221220011), we get a palindrome (1201442441021).

Subtracting from 1100221221010 its reverse (101221220011), we obtain a palindrome (999000000999).

It can be divided in two parts, 1100221 and 221010, that added together give a palindrome (1321231).

The spelling of 1100221221010 in words is "one trillion, one hundred billion, two hundred twenty-one million, two hundred twenty-one thousand, ten".