11011222001000 has 64 divisors (see below), whose sum is σ = 27748279475280. Its totient is φ = 4065681964800.

The previous prime is 11011222000981. The next prime is 11011222001033. The reversal of 11011222001000 is 10022211011.

It can be written as a sum of positive squares in 8 ways, for example, as 179658995044 + 10831563005956 = 423862^2 + 3291134^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 423495539 + ... + 423521538.

Almost surely, 2^{11011222001000} is an apocalyptic number.

11011222001000 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

11011222001000 is an abundant number, since it is smaller than the sum of its proper divisors (16737057474280).

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

11011222001000 is a wasteful number, since it uses less digits than its factorization.

11011222001000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 847017111 (or 847017097 counting only the distinct ones).

The product of its (nonzero) digits is 8, while the sum is 11.

Adding to 11011222001000 its reverse (10022211011), we get a palindrome (11021244212011).

The spelling of 11011222001000 in words is "eleven trillion, eleven billion, two hundred twenty-two million, one thousand".