1100211211220 has 24 divisors (see below), whose sum is σ = 2520483866208. Its totient is φ = 400076804000.

The previous prime is 1100211211157. The next prime is 1100211211243. The reversal of 1100211211220 is 221121120011.

It is a junction number, because it is equal to n+sod(n) for n = 1100211211195 and 1100211211204.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2500479806 + ... + 2500480245.

It is an arithmetic number, because the mean of its divisors is an integer number (105020161092).

Almost surely, 2^{1100211211220} is an apocalyptic number.

1100211211220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1100211211220 is an abundant number, since it is smaller than the sum of its proper divisors (1420272654988).

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

1100211211220 is a wasteful number, since it uses less digits than its factorization.

1100211211220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5000960071 (or 5000960069 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 14.

Adding to 1100211211220 its reverse (221121120011), we get a palindrome (1321332331231).

The spelling of 1100211211220 in words is "one trillion, one hundred billion, two hundred eleven million, two hundred eleven thousand, two hundred twenty".