11021221110 has 32 divisors (see below), whose sum is σ = 26536004352. Its totient is φ = 2929539680.

The previous prime is 11021221093. The next prime is 11021221139. The reversal of 11021221110 is 1112212011.

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 15 ways as a sum of consecutive naturals, for example, 581304 + ... + 599963.

It is an arithmetic number, because the mean of its divisors is an integer number (829250136).

Almost surely, 2^11021221110 is an apocalyptic number.

11021221110 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

11021221110 is an abundant number, since it is smaller than the sum of its proper divisors (15514783242).

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

11021221110 is a wasteful number, since it uses less digits than its factorization.

11021221110 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1181588.

The product of its (nonzero) digits is 8, while the sum is 12.

Adding to 11021221110 its reverse (1112212011), we get a palindrome (12133433121).

Subtracting from 11021221110 its reverse (1112212011), we obtain a palindrome (9909009099).

The spelling of 11021221110 in words is "eleven billion, twenty-one million, two hundred twenty-one thousand, one hundred ten".