1101221130220 has 12 divisors (see below), whose sum is σ = 2312564373504. Its totient is φ = 440488452080.

The previous prime is 1101221130181. The next prime is 1101221130227. The reversal of 1101221130220 is 220311221011.

It is a junction number, because it is equal to n+sod(n) for n = 1101221130194 and 1101221130203.

It is not an unprimeable number, because it can be changed into a prime (1101221130227) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 27530528236 + ... + 27530528275.

It is an arithmetic number, because the mean of its divisors is an integer number (192713697792).

Almost surely, 2^{1101221130220} is an apocalyptic number.

1101221130220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1101221130220 is an abundant number, since it is smaller than the sum of its proper divisors (1211343243284).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1101221130220 is a wasteful number, since it uses less digits than its factorization.

1101221130220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 55061056520 (or 55061056518 counting only the distinct ones).

The product of its (nonzero) digits is 48, while the sum is 16.

Adding to 1101221130220 its reverse (220311221011), we get a palindrome (1321532351231).

The spelling of 1101221130220 in words is "one trillion, one hundred one billion, two hundred twenty-one million, one hundred thirty thousand, two hundred twenty".