11011122221000 has 128 divisors (see below), whose sum is σ = 29015115217920. Its totient is φ = 3874881600000.

The previous prime is 11011122220997. The next prime is 11011122221017. The reversal of 11011122221000 is 12222111011.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 15804341 + ... + 16486340.

It is an arithmetic number, because the mean of its divisors is an integer number (226680587640).

Almost surely, 2^{11011122221000} is an apocalyptic number.

11011122221000 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

11011122221000 is an abundant number, since it is smaller than the sum of its proper divisors (18003992996920).

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

11011122221000 is a wasteful number, since it uses less digits than its factorization.

11011122221000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 32290744 (or 32290730 counting only the distinct ones).

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

Adding to 11011122221000 its reverse (12222111011), we get a palindrome (11023344332011).

The spelling of 11011122221000 in words is "eleven trillion, eleven billion, one hundred twenty-two million, two hundred twenty-one thousand".